Home 41mm Mod Turtle Watch Case Sapphire Glass Waterproof For Abalone/tuna mouth Captain Willard TMI NH35 NH36 NH38 4R Movement Stainless Steel Watch Accessories
Color: NO.1 Black ring
Regular price $75.48 Sale price $50.33
33% OFF

41mm Mod Turtle Watch Case Sapphire Glass Waterproof For Abalone/tuna mouth Captain Willard TMI NH35 NH36 NH38 4R Movement Stainless Steel Watch Accessories

Add to Wishlist

Guarantee Safe Checkout

Visa
PayPal
Mastercard
American Express
Google Pay
Apple Pay
Discover

Small Turtle modification (mod) watch case designed for building custom diver-style watches, inspired by Seiko's classic "Turtle" (SRP series, also called Abalone) and "Tuna" (shrouded diver) designs. These cases are popular in the watch modding community for upgrading or building homage watches using affordable Seiko NH35/NH36 automatic movements.

Key Specifications 

  • Material: 316L stainless steel (durable, corrosion-resistant)
  • Case Diameter: 41mm (modern wearable size)
  • Thickness: 12.7mm
  • Crown Position: Offset at approximately 3.8 o'clock (common in Turtle-style cases for comfort)
  • Bezel: Fits outer diameter 38mm, inner 31.5mm (likely a rotating diver bezel)
  • Dial Fit: 28.5mm diameter (standard for NH35 movements)
  • Movement Compatibility: NH35, NH36, NH34, NH38, and similar (e.g., 4R36)
  • Crystal: Sapphire glass (scratch-resistant, high clarity)
  • Water Resistance: 100 meters (10ATM) with screw-down crown
  • Case Back: Solid stainless steel (screw-in for waterproofing)
  • Lug Width: 19mm (for straps/bands)

Shipping:

1. We will post your item within 48 hours after the payment is completed.

2. Transport time varies with different shipping methods and the distance.

Please Note:

Delivery time depends on many factors ,if you don't receive you item more than 40 days, please contact us, we will check and solve the problem for you.

Feedback

Feedback Your satisfaction is our first priority. If you receive the order and are in good condition, we would be grateful if you leave a positive feedback of 5 stars on the transaction.

If you contact us before leaving 1-3 star feedback, we will be happy to provide satisfactory solutions.

Your satisfaction is our goal, if you have any question,please contact us,we will reply you in 24 hours!

Return:

We can give you a full refund for items returned within 15 days of you receiving them if your items are returned in their original condition. Buyers need pay for the return shipping fee. Once receive the return item, we will refund you immediately.

Thank you and enjoy your shopping in our store!


Watch Parts

42mm Black PVD FXD Watch Case Sapphire Glass Fit NH35 NH36 NH38 ETA2824 PT5000 ST2130 20Bar42mm Black PVD FXD Watch Case Sapphire Glass Fit NH35 NH36 NH38 ETA2824 PT5000 ST2130 20Bar
-21%
Add to Wishlist
Carbon Fiber Case for VK63 Movement Sapphire Glass 38MM Daytona Mod VK63 VK64 Quartz 4130 AUtomaticCarbon Fiber Case for VK63 Movement Sapphire Glass 38MM Daytona Mod VK63 VK64 Quartz 4130 AUtomatic
-15%
Add to Wishlist
40mm Carbon Fiber Case for VK64 VK63/4130/4802 Movement Daytona  Modified AccessoriesSapphire Mirror40mm Carbon Fiber Case for VK64 VK63/4130/4802 Movement Daytona  Modified AccessoriesSapphire Mirror
-31%
Add to Wishlist
38mm Pilot Case Sapphire Glass For NH35 ETA2824 PT5000 ST2130 Mechanical 316L Stainless Steel38mm Pilot Case Sapphire Glass For NH35 ETA2824 PT5000 ST2130 Mechanical 316L Stainless Steel
-36%
Add to Wishlist
29mm pelagos fxd Dial Hands Fit NH35 NH36 NH38 ETA 2824 PT5000 SW20029mm pelagos fxd Dial Hands Fit NH35 NH36 NH38 ETA 2824 PT5000 SW200
-65%
Add to Wishlist
29mm pelagos fxd Dial Hands Fit NH35 NH36 NH38 ETA 2824 PT5000 SW200
Regular price $23.76 Sale price $8.20 - $17.03
29.5mm VK63 Dial Chronograph Green Luminous High Quality Watch Modification Accessories29.5mm VK63 Dial Chronograph Green Luminous High Quality Watch Modification Accessories
-14%
Add to Wishlist
27MM square dial graffiti blue hands for Japanese NH35/NH36 movements no lume Santos Mod Part27MM square dial graffiti blue hands for Japanese NH35/NH36 movements no lume Santos Mod Part
-15%
Add to Wishlist
6912 Numerical Dial 28.5mm sunburst / Matte dials with hands fit NH35/36/4R/7S movement6912 Numerical Dial 28.5mm sunburst / Matte dials with hands fit NH35/36/4R/7S movement
-15%
Add to Wishlist
NH35 Dial True Starry Sky Dial  28.5mm Blue Gold Sand Roman Numerical  DialNH35 Dial True Starry Sky Dial  28.5mm Blue Gold Sand Roman Numerical  Dial
-14%
Add to Wishlist
28.5mm NH36 Dial camouflage dual calendar Green Lume light with hands Day-Date crown at 3,3.8,4.228.5mm NH36 Dial camouflage dual calendar Green Lume light with hands Day-Date crown at 3,3.8,4.2
-13%
Add to Wishlist
Suede leather Strap Quick-release real cowhide flip leather strap 18 20 22 24mm unisexSuede leather Strap Quick-release real cowhide flip leather strap 18 20 22 24mm unisex
-7%
Add to Wishlist
20mm 904L Solid Stainless Steel Bracelet silver Black Rose gold Strap Fits 39mm BB58 Watch Case20mm 904L Solid Stainless Steel Bracelet silver Black Rose gold Strap Fits 39mm BB58 Watch Case
-31%
Add to Wishlist
Handmade Leather Strap Vintage Top Layer Cowhide Watch Band 18 19 20 21 22MMHandmade Leather Strap Vintage Top Layer Cowhide Watch Band 18 19 20 21 22MM
-24%
Add to Wishlist
Watch hand green luminous three-pronged fork hand for NH35/36/4R/7S automatic movement.Watch hand green luminous three-pronged fork hand for NH35/36/4R/7S automatic movement.
-34%
Add to Wishlist
Modified watch hands luminous watch accessories suitable for NH35/36/34 38 4R movementsModified watch hands luminous watch accessories suitable for NH35/36/34 38 4R movements
-26%
Add to Wishlist