Ocean Crawler · Microbrand · United States
Ocean Crawler Shipwreck Hunter Chronograph
- Seiko NE88A
- 43 mm × 16 mm
- Sapphire crystal
- 600 m water resistance
Movement
- Caliber
- Seiko NE88A
- Type
- Automatic
- Tier
- Upper
- Complications
- Small seconds, Date, Chronograph
- Frequency
- 28,800 bph
- Power reserve
- 45 h
- Hacking
- Yes
- Accuracy (factory)
- -15 / +25 s/day
- Brand regulation
- -1 / +1 s/day in 3 positions
- Modifications
- Modified Seiko NE88 (column wheel, vertical clutch) with two sub-dials instead of three: 30-minute counter at 9, small seconds at 3
Case
- Diameter
- 43 mm
- Lug to lug
- 50.6 mm
- Thickness
- 16 mm
- Lug width
- 20 mm
- Material
- Titanium
- Hardening
- —
- Water resistance
- 600 m
- Crown
- —
- Case back
- Display
- Bezel
- Unidirectional, 120 clicks, sapphire insert, lumed
- Finishing
- Brushed
Crystal & dial
- Crystal
- Sapphire
- Shape
- Domed
- Anti-reflective
- Yes (side not stated)
- Lume
- —
Bracelet
- Bracelet
- —
Weight
- Head only
- —
- On bracelet
- —
- On strap
- —
Prices
Variants
| Name | Dial | Status |
|---|---|---|
| Black | black | Limited |
| Silver Prototype | silver | Limited |
About this entry
67% of key specs known. Missing: weight, hardening, crown, lume, bracelet offered.
Ocean Crawler's titanium chronograph diver, "only 100 units made". Specs from the Chronograph Prototype listing (2021), which repeats the Shipwreck Hunter Chronograph text: 43.0mm without crown, 16mm thick (not stated whether this includes the 3.5mm domed crystal; recorded as total), 50.6mm lug-to-lug, 20mm lugs, titanium case with brushed finishes, 600m, all-sapphire unidirectional bezel with 120 clicks and markers filled with seven layers of Swiss C3 Super-LumiNova, sapphire caseback, 3.5mm domed sapphire crystal with an anti-reflective coating (side not stated), "Movement Accuracy. +/- 1 seconds/day in 3 positions". The movement is "a modified Seiko NE88 chronograph movement" with the 30-minute counter at 9 and small seconds at 3 (no 12-hour counter); whether a date is shown isn't stated, so complications are left to the movement file. The prototype has a silver dial and, in its photos, a black case (coating not described). The production Shipwreck Hunter Chronograph listing (created 2017, black dial, $2999; added 2026-10-25) repeats the same specs and accuracy claim and calls the movement "Caliber OC777. This is a modified Seiko NE88 chronograph movement" with a three-point hammer; its photos show a natural titanium case, a black dial and a date window between 4 and 5.
Last verified: 2026-10-25. Edit or correct this entry.
Sources
- Ocean Crawler, Shipwreck Hunter Chronograph (product page) accessed 2026-10-25
- Ocean Crawler, Chronograph Prototype - Silver (product page) accessed 2026-10-25