Zelos · Microbrand · Singapore
Zelos Hammerhead Titanium 1000m
- Seiko NH35A
- 44 mm × 17 mm
- Sapphire crystal
- 1000 m water resistance
Where to buy
- Zelos (Coal Black)Worldwide
- Zelos (Cobalt Blue)Worldwide
- Zelos (Meteorite)Worldwide
- Zelos (Submarine Limited Edition)Worldwide
Movement
- Caliber
- Seiko NH35A
- Type
- Automatic
- Tier
- Entry
- Complications
- Date
- Frequency
- 21,600 bph
- Power reserve
- 41 h
- Hacking
- Yes
- Accuracy (factory)
- -20 / +40 s/day
Case
- Diameter
- 44 mm
- Lug to lug
- 49 mm
- Thickness
- 17 mm
- Lug width
- 22 mm
- Material
- Titanium
- Hardening
- —
- Water resistance
- 1000 m
- Crown
- Screw-down
- Case back
- —
- Bezel
- Unidirectional, 120 clicks, 60-minute dive, ceramic insert, lumed
- Finishing
- Alternating brushed and sandblasted
Crystal & dial
- Crystal
- Sapphire
- Shape
- Double-domed
- Anti-reflective
- Inner
- Lume
- Super-LumiNova C3 (hands, indices, bezel, crown) and BGW9 (minute track)
Bracelet & clasp
- Style
- —
- Links per row
- —
- Solid end links
- —
- Solid links
- —
- Link attachment
- —
- Taper
- —
- Quick release
- —
- Half links
- —
- Clasp
- —
- Micro-adjust
- —
- Diver extension
- Yes
Straps
- Strap 1
- Canvas, Extra canvas strap included
- Strap 2
- Leather, Extra vintage leather strap included
Weight
- Head only
- —
- On bracelet
- —
- On strap
- —
Prices
Variants
| Name | Dial | Bezel | Status |
|---|---|---|---|
| Coal Black | black | Black ceramic insert | — |
| Cobalt Blue | blue (sunburst) | Blue ceramic insert | — |
| Meteorite | grey (meteorite) | Black ceramic insert | — |
| Submarine Limited Edition | grey (steel cut from a nuclear submarine hull) | Black ceramic insert; submarine engraving on the case side | Limited (80) |
About this entry
68% of key specs known. Missing: weight, hardening, bracelet links, end links, link attachment, clasp micro-adjust.
Titanium version of the original Hammerhead, listed by Zelos on 12 April 2018 and now in its Discontinued Models collection; the bronze, steel and Ti-Damascus cases of the same design are separate models. Titanium case and bracelet (grade not stated) with alternating brushed and sandblasted finishing. Same dimensions as the other first generation Hammerheads: 44mm, 49mm lug to lug, 17mm high including the double-domed sapphire (14.5mm without), 22mm lugs, 1000m. Seiko NH35 with a date at 6 (aBlogtoWatch). Lumed screw-down crown; fully lumed ceramic insert on a 120-click unidirectional bezel (Zelos: "1500 Vickers"); C3 on hands, indices and bezel, BGW9 minute track; inner AR coating. Titanium bracelet with a quick-adjust diver's extension, plus extra canvas and vintage leather straps. The Submarine Limited Edition (80 numbered pieces; its product URL says "cobalt-blue") has a dial cut from the hull steel of a decommissioned US nuclear attack submarine, a submarine engraving on the case side and an engraved "Emergency Blow" caseback; the bronze Submarine (100 pieces) is in the Hammerhead 1000m Diver Bronze file. Launch pricing per aBlogtoWatch started at $499 (Submarine $559, Meteorite $659) and rose $30 for every 20 pieces sold, reaching the full prices recorded here ($849, Meteorite $949) by 1 May 2018. Caseback type for the regular models and weight are not stated.
Last verified: 2026-10-21. Edit or correct this entry.
Sources
- Zelos Hammerhead Titanium 1000m Coal Black (product page; the other listings carry the same specs) accessed 2026-10-21
- Zelos Hammerhead Titanium 1000m Submarine Limited Edition (product page; 80 pieces) accessed 2026-10-21
- Zelos Discontinued Models collection (lists all four Hammerhead Titanium 1000m listings) accessed 2026-10-21
- aBlogtoWatch, Zelos Hammerhead Titanium 1000M Dive Watch (April 2018) accessed 2026-10-21
- SeriousWatches (Zelos retailer), Hammerhead Titanium Coal Black accessed 2026-10-21