Zelos · Microbrand · Singapore
Zelos Helmsman 2 300m Steel
- Seiko NH35A
- 42 mm
- Sapphire crystal
- 300 m water resistance
Where to buy
- Zelos (Black)Worldwide
- Zelos (Blue)Worldwide
- Zelos (Meteorite)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
- 42 mm
- Lug to lug
- 48 mm
- Thickness
- —
- Lug width
- 22 mm
- Material
- Steel (316L)
- Hardening
- —
- Water resistance
- 300 m
- Crown
- Screw-down
- Case back
- —
- Bezel
- Internal rotating, 60-minute dive, lumed
- Finishing
- Sandblasted case sides, polished edges, brushed bezel
Crystal & dial
- Crystal
- Sapphire
- Shape
- Double-domed
- Anti-reflective
- —
- Lume
- Super-LumiNova BGW9 (dial, hands, internal bezel and crown logos)
Bracelet
- Bracelet
- Not offered
Straps
- Strap 1
- Leather, Horween leather strap with custom Zelos buckle
- Strap 2
- Rubber, Zelos rubber strap, included with a strap-change tool
Weight
- Head only
- —
- On bracelet
- —
- On strap
- —
Prices
Variants
| Name | Dial | Bezel |
|---|---|---|
| Black | black, blue accents | Brushed steel outer bezel; lumed internal bezel |
| Blue | blue | Brushed steel outer bezel; lumed internal bezel |
| Meteorite | grey (Muonionalusta meteorite) | Brushed steel outer bezel; lumed internal bezel |
About this entry
73% of key specs known. Missing: thickness, weight, hardening, AR coating.
Second-generation Helmsman, a super-compressor-style diver with twin crowns and an internal rotating bezel, redesigned "from ground up" and listed by Zelos from 1 July 2017 in 316L steel (this file) or CuSn8 bronze (Helmsman 2 300m Bronze, a separate model); all seven listings are in Zelos's Discontinued Models collection. The later steel Helmsman SS (2025, Miyota 9015) and titanium Helmsman 10th Anniversary Edition (2024) are separate models. Zelos spec list: 42mm, "13.5mm thick excluding crystal" (so thickness is left blank; aBlogtoWatch and SeriousWatches also give 13.5mm, and no with-crystal total was found), 22mm lugs, 48mm lug to lug, double-domed sapphire, 300m, Seiko NH35, double screw-down crowns with lumed logo, BGW9 fully lumed CNC-engraved internal bezel, BGW9 on dial and hands, multi-level dial. The outer bezel is brushed and "simply screwed on (except for the ceramic variant)" so it can be swapped by hand. SeriousWatches: the 2 o'clock crown turns the internal bezel and the 4 o'clock crown sets the movement. Date at 3 and 60-minute internal bezel scale from Zelos's photos. Sold with a Horween leather strap and a Zelos rubber strap (plus a strap-change tool); no bracelet was listed. aBlogtoWatch reported pre-order prices of $369 to $549 in 2017; the recorded prices are the store's current listed prices. Caseback, AR coating and weight are not stated. The Steel Black listing's photo file is named "S-Blue" but shows the black dial.
Last verified: 2026-10-21. Edit or correct this entry.
Sources
- Zelos Helmsman 2 300m Steel Black (product page; all seven listings carry the same text and spec list) accessed 2026-10-21
- Zelos Helmsman 2 300m Steel Blue (product page) accessed 2026-10-21
- Zelos Helmsman 2 300m Steel Meteorite (product page) accessed 2026-10-21
- Zelos Discontinued Models collection (lists all seven Helmsman 2 listings) accessed 2026-10-21
- SeriousWatches (Zelos retailer), Helmsman 2 Black (crown functions, spec table) accessed 2026-10-21
- aBlogtoWatch, Zelos Helmsman 2 Dive Watch (sponsored launch post, July 2017) accessed 2026-10-21