Seikojust | Gem Ocean
Complete your watch
Estimated arrival: 10–20 business days
Includes assembly and delivery. Timing may vary by destination.14-day returns on unworn standard watches. Personalised orders excluded.
✔ 2-Year Warranty
★ Premium Box Packaging
✈︎ Free Worldwide Shipping
At a glance
- Case size
- 36 / 39 mm
- Movement
- Seiko NH35 automatic movement
- Glass
- Sapphire, anti-scratch
- Case & bracelet
- 316L stainless steel
- Water resistance
- 5 ATM
- Assembly
- 3–5 business days
- Delivery
- 7–15 business days after dispatch
Description
The SEIKJUST Mod Gem Ocean embodies the brilliance of the sea — deep, refined, and endlessly captivating.Its ocean-blue sunburst dial, set with sparkling gem-style hour markers, creates a luxurious statement while retaining a sense of balance and subtlety.Powered by the Seiko NH35 automatic movement, this watch blends Japanese precision with timeless design — perfect for those who appreciate detail, quality, and elegance.
✅ Case Size: 39mm / 36mm
✅ Case Thickness: 12mm
✅ Movement: SEIKO NH35 Automatic
✅ Crystal: Sapphire crystal with anti-reflective coating
✅ Material: 316L stainless steel
✅ Dial: Ocean-blue sunburst dial with diamond-style indices
✅ Bezel: Fluted stainless steel bezel
✅ Bracelet: 316L stainless steel Jubilee-style bracelet
✅ Lug Width: 20mm
✅ Caseback: Stainless steel screw-down
✅ Water Resistance: 5 ATM (50 m)
Each SEIKJUST Mod Gem Ocean is carefully hand-assembled and inspected before shipment.
Estimated handling time: 3 – 5 business days.
100% customization available
✔ Secure checkout
Delivered in a luxury watch box with tools
2-year international warranty
Shipping & returns
Each watch is made to order. Assembly takes 3–5 business days before dispatch; delivery typically takes an additional 7–15 business days.
Tracked worldwide shipping is free. Read the destination details in our shipping policy.
Return conditions and exceptions for custom orders are explained in our returns policy.
Warranty & support
Your custom watch includes a 2-year warranty. See the coverage and conditions in our warranty policy.
Need help choosing? Contact Watcheray.
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