Collection: Watchmaking Kit: Sport Watch & Dive Watch

Blue diver DIY watch kit

Classic diver with stainless steel blue bezel

Premium DIY kit with Seiko movement dive watch

The best experience deserves the best tools

Your DIY watch with black fume dial

Quality components for your Fume Dial diver

DIY PVD diver

Build a watch you are proud of

Stealth diver build DIY Dive watch kit

Stealth PVD diver with Seiko NH movement


  • The most versatile design

    If you want an everyday wear sports watch with the highest modding potential, you are in for a treat. Our Expedition and Dive watches are powered by the tried and true TMI Seiko NH movements, and our dial, bezel, and hands are made to be compatible with Seiko aftermarket modding components.  

    Our Dive and Expedition watches utilize the same chapter rings, hands, and dials. You will be able to create many different new looks with just a few mod components. Here's a quick guide to bezel switching so you'll have an idea how easily you can mod your watch:

    Mod potential:★★★

    Challenging Level : ★★★★

36 products
  • [Modding Starter Combo] DIY Kit Bundle | 42mm Dive GMT Coke, Pespi, and Silver steel Bezel | Seiko Automatic GMT movement | DWC-D03
    [Modding Starter Combo] DIY Kit Bundle | 42mm Dive GMT Coke, Pespi, and Silver steel Bezel | Seiko Automatic GMT movement | DWC-D03
    Regular price
    ¥121,800
    Sale price
    ¥86,200
  • NEW ARRIVAL - 40mm Vintage Skeleton Dive Watch Kit (Seiko NH72) with tools and video instructions
    diy watch club - watchmaking kit - 40mm Vintage Skeleton Dive Watch Kit (Seiko NH72) with tools and video instructions
    Regular price
    ¥58,700
    Sale price
    ¥47,100
  • NEW ARRIVAL - 42mm Black Type B bezel dive watch kit | D05 Maxi Superlume Dial with C3 lume
    42mm Black Type B bezel dive watch kit  | D05 Maxi Superlume Dial with C3 lume
    Regular price
    ¥65,800
    Sale price
    ¥53,000
  • NEW ARRIVAL - 42mm Blue Type B bezel dive watch kit | D05 Maxi Superlume Dial with C3 lume
    diy watch club - 42mm Blue Type B bezel dive watch kit  | D05 Maxi Superlume Dial with C3 lume
    Regular price
    ¥65,800
    Sale price
    ¥53,000
  • 42mm FULL LUME Dive Watch Kit | BGW9 and C3 Full Lume Dial (Sandwich) DWC-D03
    42mm FULL LUME Dive Watch Kit | BGW9 and C3 Full Lume Dial (Sandwich) DWC-D03
    Regular price
    ¥69,300
    Sale price
    ¥58,700
  • NEW ARRIVAL - Plated 925 Silver 42mm PEPSI GMT Dive Watch kit | Vintage Diver with Patina | Aging experience | Seiko NH34
    NEW ARRIVAL - Plated 925 Silver 42mm PEPSI GMT Dive Watch kit | Vintage Diver with Patina | Aging experience | Seiko NH34
    Regular price
    ¥80,900
    Sale price
    ¥68,500
  • 40mm Vintage Dive Watch Kit (Seiko Mechanical) with tools and video instructions
    40mm Vintage Dive Watch Kit (Seiko Mechanical) with tools and video instructions -
    Regular price
    ¥48,900
    Sale price
    ¥41,800
  • 42mm White Dial "Pepsi" GMT Dive Watch | Seiko GMT movement | Aluminum-Steel Hybrid Red & Blue GMT Bezel | DWC-D03
    42mm White Dial GMT Pepsi Dive Watch | Seiko GMT movement | Aluminum-Steel Hybrid Red & Blue GMT Bezel | DWC-D03
    Regular price
    ¥79,100
    Sale price
    ¥67,600
  • DIY Watchmaking Kit | 42mm NH34 GMT BATMAN Dive Watch | Automatic GMT Blue and Black | Ceramic Batman GMT | DWC-D03 RIVAL
    DIY Watchmaking Kit | NH34 GMT BATMAN Dive Watch | Automatic GMT Blue and Black | Ceramic Batman GMT | DWC-D03 RIVAL
    Regular price
    ¥82,700
    Sale price
    ¥70,200
  • 42mm White Dial "Explorer" GMT Watch Kit | Stainless Stain Bracelet | Silver GMT Bezel | DWC-D03
    42mm White dial Diver Dress GMT Watch Kit | Stainless Stain Bracelet | Silver GMT Bezel | DWC-D03
    Regular price
    ¥79,100
    Sale price
    ¥67,600
  • DIY Watchmaking Kit | NH34 42mm GMT Dive Watch | Seiko GMT movement | Ceramic Coke GMT Bezel | DWC-D03
    DIY Watchmaking Kit | NH34 GMT Dive Watch | Seiko GMT movement | Ceramic Coke GMT Bezel | DWC-D03
    Regular price
    ¥82,700
    Sale price
    ¥70,200
  • 42mm White dial "Coke" Diver Dress GMT Watch Kit | Stainless Stain Bracelet | Ceramic Red-Black GMT Bezel | DWC-D03
    White dial
    Regular price
    ¥90,700
    Sale price
    ¥77,300
  • [Editor's Gift Pick] Our skeleton dive watch kit with the sapphire dial
    [Editor's Gift Pick] Our skeleton dive watch kit with the sapphire dial
    Regular price
    ¥100,400
    Sale price
    ¥85,300
  • DIY Watchmaking Kit | 42mm NH72 Dive Watch With Sapphire Dial | DWC-D02S
    DIY Watchmaking Kit | NH72 Dive Watch With Sapphire Dial | DWC-D02S
    Regular price
    ¥77,300
    Sale price
    ¥69,300
  • 42mm "Coke" Diver Dress GMT Watch Kit | Stainless Stain Bracelet | Ceramic Red-Black GMT Bezel | DWC-D03
    42mm
    Regular price
    ¥88,900
    Sale price
    ¥88,900
  • DIY Watch Kit | 42mm Blue GMT Dive Watch | Seiko NH34 Automatic GMT | 24hr Blue Bezel (Stainless Steel) | DWC-D03
    DIY Watch Kit | Blue GMT Dive Watch | Seiko NH34 Automatic GMT | 24hr Blue Bezel (Stainless Steel) | DWC-D03
    Regular price
    ¥72,000
    Sale price
    ¥72,000
  • 42mm White dial "Batman" GMT Watch Kit | NH34 GMT Dive Watch | White FKM Rubber Band | Ceramic Blue-Black GMT Bezel | DWC-D03
    White dial
    Regular price
    ¥82,700
    Sale price
    ¥82,700
  • 42mm "Sprite" Diver Dress GMT Watch Kit | NH34 GMT Dive Watch | Stainless Stain Bracelet | Green-Black GMT Bezel | DWC-D03
    Regular price
    ¥79,100
    Sale price
    ¥67,600
  • A GMT Dive Watch set for those who loves a classic GMT
    A GMT Dive Watch set for those who loves a classic GMT - watchmaking kit - coke diver
    Regular price
    ¥95,100
    Sale price
    ¥95,100
  • DIY Watch Kit | 42mm GMT Pepsi Dive Watch | Seiko GMT movement | Aluminum-Steel Hybrid Red & Blue GMT Bezel | DWC-D03
    DIY Watch Kit | GMT Pepsi Dive Watch | Seiko GMT movement | Aluminum-Steel Hybrid Red & Blue GMT Bezel | DWC-D03
    Regular price
    ¥73,800
    Sale price
    ¥73,800
  • 42mm "Batman" Diver Dress GMT Watch Kit | NH34 GMT Dive Watch | Stainless Stain Bracelet | Ceramic Blue-Black GMT Bezel | DWC-D03
    Regular price
    ¥88,900
    Sale price
    ¥80,000
  • DIY Watch Kit | 42mm GMT Sprite Dive Watch | Seiko GMT movement | Aluminum-Steel Hybrid Green & Black GMT Bezel | DWC-D03
    DIY Watch Kit | GMT Sprite Dive Watch | Seiko GMT movement | Aluminum-Steel Hybrid Green & Black GMT Bezel | DWC-D03
    Regular price
    ¥73,800
    Sale price
    ¥73,800
  • DIY Watchmaking Kit | 42mm NH72 Skeleton Dive Watch with Sapphire Dial & Black Ceramic Bezel Insert | DWC-D02S
    DIY Watchmaking Kit | NH72 Skeleton Dive Watch with Sapphire Dial & Black Ceramic Bezel Insert | DWC-D02S - orange second hand
    Regular price
    ¥82,700
    Sale price
    ¥82,700
  • DIY Watchmaking Kit | 42mm PVD Black NH72 Dive Watch With Sapphire Dial | DWC-D02S
    DIY Watchmaking Kit | PVD Black NH72 Dive Watch With Sapphire Dial | DWC-D02S
    Regular price
    ¥88,900
    Sale price
    ¥80,000
  • DIY Watchmaking Kit | 42mm NH72 Dive Watch With Sapphire Dial & Green Ceramic Bezel Insert | DWC-D02S
    DIY Watchmaking Kit | NH72 Dive Watch With Sapphire Dial & Green Ceramic Bezel Insert | DWC-D02S
    Regular price
    ¥82,700
    Sale price
    ¥82,700
  • DIY Watchmaking Kit | 42mm Skeleton Dive Watch with NH72 Automatic Movement | DWC-D01S
    DIY Watchmaking Kit | Skeleton Dive Watch with NH72 Automatic Movement | DWC-D01S
    Regular price
    ¥61,300
    Sale price
    ¥61,300
  • [LIMITED] DIY Watchmaking Kit | 42mm PVD GMT Coke Red-Black Dive Watch | Seiko Automatic GMT movement | DWC-D03
    [LIMITED] DIY Watchmaking Kit | PVD GMT Coke Red-Black Dive Watch | Seiko Automatic GMT movement | DWC-D03
    Regular price
    ¥101,300
    Sale price
    ¥101,300
  • DIY Watchmaking Kit | 42mm NH72 Dive Watch With Sapphire Dial & Silver Brushed Bezel Insert | DWC-D02S
    DIY Watchmaking Kit | NH72 Dive Watch With Sapphire Dial & Silver Brushed Bezel Insert | DWC-D02S - orange second hand
    Regular price
    ¥82,700
    Sale price
    ¥82,700
  • DIY Watchmaking Kit | 42mm Skeleton Dive Watch with NH72 Automatic Movement & Silver Brushed Bezel | DWC-D01S
    DIY Watchmaking Kit | Skeleton Dive Watch with NH72 Automatic Movement & Silver Brushed Bezel | DWC-D01S
    Regular price
    ¥64,900
    Sale price
    ¥64,900
  • 42mm Vintage Dive Watch Aging Experience + DIY Watch Kit | Diver series (Blue Bezel Insert)
    Vintage Dive Watch Aging Experience + DIY Watch Kit | Diver series (Blue Bezel Insert)
    Regular price
    ¥77,300
    Sale price
    ¥65,800
  • 42mm Vintage Dive Watch Aging Experience + DIY Watch Kit | Diver series (Green Bezel Insert)
    Vintage Dive Watch Aging Experience + DIY Watch Kit | Diver series (Green Bezel Insert)
    Regular price
    ¥77,300
    Sale price
    ¥65,800
  • 42mm Vintage Dive Watch Aging Experience + DIY Watch Kit | Diver series (Black Bezel Insert)
    Vintage Dive Watch Aging Experience + DIY Watch Kit | Diver series (Black Bezel Insert)
    Regular price
    ¥77,300
    Sale price
    ¥65,800