Zelos · Microbrand · Singapore
Zelos ZX Bronze Automatic Chronograph
- ETA Valjoux 7750
- 43 mm × 16 mm
- Sapphire crystal
- 100 m water resistance
Where to buy
- Zelos (ZX-4)Worldwide
- Zelos (ZX-5)Worldwide
- Zelos (ZX-6 Meteorite)Worldwide
Movement
- Caliber
- ETA Valjoux 7750
- Type
- Automatic
- Tier
- Upper
- Complications
- Hours, Minutes, Small seconds, Chronograph
- Frequency
- 28,800 bph
- Power reserve
- 54 h
- Hacking
- Yes
- Accuracy (factory)
- —
- Grade
- Elaboré
Case
- Diameter
- 43 mm
- Lug to lug
- 49 mm
- Thickness
- 16 mm
- Lug width
- 22 mm
- Material
- Bronze (CuSn8)
- Hardening
- —
- Water resistance
- 100 m
- Crown
- —
- Case back
- Display
- Bezel
- Fixed
- Finishing
- Brushed sides and mirror-polished edges
Crystal & dial
- Crystal
- Sapphire
- Shape
- Domed
- Anti-reflective
- Inner
- Lume
- BGW9
Bracelet
- Bracelet
- —
Straps
- Strap 1
- Leather, Horween leather
Weight
- Head only
- —
- On bracelet
- —
- On strap
- —
Prices
Variants
| Name | Dial | Bezel |
|---|---|---|
| ZX-4 | black (sunburst), black subdials with bronze-tone rings | Bronze bezel |
| ZX-5 | blue (sunburst), white subdials | Bronze bezel |
| ZX-6 Meteorite | gray (meteorite), black subdials with bronze-tone rings | Bronze bezel |
About this entry
73% of key specs known. Missing: weight, hardening, crown, bracelet offered.
CuSn8 bronze version of the ZX chronograph with the Swiss Valjoux 7750 (the Seiko VK67 meca-quartz version and the titanium versions are separate models). Zelos's first chronograph series, styled after the X-15 rocket plane, launched on Kickstarter in January 2018 and listed on zeloswatches.com in February 2018; every ZX product is now sold out and in Zelos's Discontinued Models collection. Zelos numbers the colourways (ZX-1 to ZX-3 titanium, ZX-4 to ZX-6 bronze, ZX-6 being the bronze Meteorite); the product text is shared by the whole series ("CUSN8 Marine Bronze or Titanium Case"), so ZX-4 and ZX-5 are identified as bronze from the photos (the ZX-4 photo files are named "BronzeBlack"). Zelos: "Swiss ETA 7750 Elabore Grade". No day or date window on the dial (photos; SeriousWatches lists "Date: No" for the bronze ZX-6): 30-minute counter at 12, small seconds at 9, 12-hour counter at 6, tachymeter on the flange. The Time Bum, reviewing the Ti-Damascus ZX-7, describes a decorated 7750 with a custom "turbofan" rotor seen through the sapphire caseback, and a signed, lumed "Nozzle" crown. Thickness is Zelos's "16mm Height" (not stated whether it includes the domed crystal). Lug width and a fixed CuSn8 bronze bezel per SeriousWatches's ZX-6 table; the ZX-4 and ZX-5 photos show the same bronze bezel. Two-layer sandwich dial with BGW9 lume; Zelos's lume photo for the white-subdial versions (also on the ZX-5 listing) shows fully lumed subdials, while its generic bronze lume shot shows unlumed dark subdials. Sold on a Horween leather strap; Zelos's separately sold ZX bracelet is titanium, so the bracelet fields are left blank. Crown screw-down, caseback material and attachment, and weight not stated. Prices are the store's default "sg" option on the sold-out listings; each listing also has an "hk" option (a country-pricing app, labelled "mlveda_country") at $1,799 (ZX-6 Meteorite $1,999), not recorded. Launch pricing was lower: Kickstarter $379 to $2,087 across the series (aBlogtoWatch), and The Time Bum (October 2018) quotes $829 for a titanium or bronze automatic. The ZX-6 Meteorite is bronze per SeriousWatches; The Time Bum quotes $1,099 for an automatic with a meteorite dial.
Last verified: 2026-10-21. Edit or correct this entry.
Sources
- Zelos ZX-4 Automatic Chronograph (product page; the series shares one spec list) accessed 2026-10-21
- Zelos ZX-5 Automatic Chronograph (product page) accessed 2026-10-21
- Zelos ZX-6 Meteorite Automatic Chronograph (product page) accessed 2026-10-21
- Zelos ZX Chronograph collection page (all sold out) accessed 2026-10-21
- Zelos Discontinued Models collection (lists every ZX product) accessed 2026-10-21
- SeriousWatches (Zelos retailer), ZX-6 Bronze Automatic Chronograph Meteorite spec table (same bronze case) accessed 2026-10-21
- aBlogtoWatch sponsored post, Zelos Experimental Swiss Auto Chronograph (Kickstarter launch, January 2018) accessed 2026-10-21
- The Time Bum, Three from Zelos (October 2018) accessed 2026-10-21





