Custom Seikomaster Edition Ocean Ignition Steel MOD
$290101
41 mmAutomatic3 m WRSapphire
The Sensei's take
The CUSTOM SEIKOMASTER EDITION OCEAN IGNITION STEEL MOD is an excellent choice for dive watch enthusiasts looking for modern aesthetics and reliability. Its quality construction and detailed features stand out at its price point, combining utility and style effectively.
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The Ocean Ignition Steel Mod delivers a more refined take on a bold dive-inspired design. Crafted from solid 316L stainless steel, its 41mm case is paired with a deep black dial and sharp orange accents, creating a powerful contrast that enhances readability and presence. The steel bracelet adds weight and durability, giving the watch a more premium, versatile feel—equally suited for daily wear or elevated occasions. Powered by the trusted Seiko NH35 automatic movement, this timepiece offers reliable performance with smooth mechanical motion. A sapphire crystal with anti-reflective coating ensures lasting clarity, while the screw-down crown and robust construction reinforce its tool-watch DNA. Finished with an exhibition case back, this hand-assembled piece combines strength, precision, an…
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At a glance
Strengths & trade-offs
Pulled straight from the spec sheet, framed for the buyer. The editorial verdict is the Sensei's take above.
Strengths
- Scratch-resistant sapphire crystal
- Luminous dial and hands
Trade-offs
- Entry-level movement
- Limited water resistance (3m)
Sensei Says
The specs, in plain English
The movement
NH35. An entry-tier movement (think Seiko NH-series): rugged, serviceable anywhere, and easy to live with. Not decorated, but it just works.
On the wrist
At 41 mm it has present, sporty proportions.
The value
Fairly priced for what it is.
On the wrist
How will this watch fit me?
Enter your wrist size once — we'll remember it — and the Sensei estimates the fit from the case measurements.
Wrist circumference
Preferred fit
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Specifications
- Released
- 2026
- Production
- Current production
- Movement
- Automatic
- Calibre
- NH35
- Movement tier
- Entry
- Power reserve
- 41 h
- Case diameter
- 41 mm
- Thickness
- 12 mm
- Case shape
- Round
- Case material
- Stainless Steel
- Water resistance
- 3 m
- Crystal
- Sapphire · anti-reflective
- Bezel
- Dive (unidirectional)
- Caseback
- Exhibition
- Dial colour
- black
- Indices
- luminous markers
- Lume
- Yes — Luminova
- Strap / bracelet
- 316L Stainless Steel
- Clasp
- security clasp
- Functions
- Automatic Movement, Luminous Hands, Luminous Markers
- Fit
- Unisex
The maker
Monomods
Monomods positions itself against "watch hype" — pushing back on watches that look premium but hide what actually matters: overdesigned dials, inflated stories, and no clarity about what's inside or who stands behind it. Their stated response is transparency: using proven Japanese movements, transparent components, and careful assembly, with real support after purchase
Alternatives worth a look
Smaller alternative
5.0mm smaller
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