Zelos · Microbrand · Singapore

Zelos Avant Skeleton Bronze

Discontinued · 2018 · Dress, Skeleton

Zelos Avant A-4 Skeleton, bronze case, open skeleton dial with ruby-set rehaut, on brown leather strap
Photo: Zelos
  • Zelos Avant A-4 Skeleton caseback, sapphire display back showing the skeletonised STP movement and rotor marked 26 jewels
  • Zelos Avant A-4 Skeleton among coils of steel wire
From $699
  • Automatic
  • 40 mm × 11 mm
  • Sapphire crystal
  • 50 m water resistance

Movement

Caliber
Automatic, caliber not identified
Type
Automatic
Tier
—
Complications
Hours, Minutes, Seconds, Skeleton
Frequency
—
Power reserve
—
Hacking
—
Accuracy (factory)
—

Case

Diameter
40 mm
Lug to lug
43 mm
Thickness
11 mm
Lug width
20 mm
Material
Bronze (CuSn8)
Hardening
—
Water resistance
50 m
Crown
—
Case back
Display
Bezel
—
Finishing
Contrasting polished and brushed surfaces

Crystal & dial

Crystal
Sapphire
Shape
—
Anti-reflective
Yes (side not stated)
Lume
Luminous paint on the hour hands (type not stated)

Bracelet

Bracelet
Not offered

Straps

Strap 1
Leather, quick release, Brown Horween leather, with a deployant clasp
Strap 2
Leather, quick release, Black crocodile-print leather, second strap included

Weight

Head only
—
On bracelet
—
On strap
—

Prices

VariantConfigurationTypePriceUSDAs ofSource
A-4—Msrp699 USD$6992026-10-21link

Variants

NameDialBezel
A-4black (open skeleton), rehaut ring set with 12 synthetic rubies, rose-gold-tone hands and indicesBronze bezel

About this entry

73% of key specs known. Missing: movement, weight, hardening, crown.

Added to the 2017 Avant line in February 2018 as colourway A-4, "Bronze with Full skeleton STP movement and Ruby Index": the Avant's CuSn8 bronze case with a fully skeletonised Swiss automatic from STP (Swiss Technology Production) in place of the Sellita SW200 used in the A-1 to A-3, so it is a separate model from Avant Bronze and Avant SS. Sold out and in Zelos's Discontinued Models collection. Movement: Zelos says only "Swiss STP Skeleton" and SeriousWatches "STP Skeleton"; no caliber number is given, so movement.id is left blank. STP's only fully skeletonised caliber listed by Grail Watch Reference is the STP6-15 (26 jewels, no date, 2016 on), which matches the "26 jewels" on the rotor in Zelos's caseback photo and the dateless dial, so the A-4 very probably uses it, but this is not confirmed. SeriousWatches lists a 38h power reserve (Grail Watch gives 44h for the STP6-15); hacking and hand-winding per SeriousWatches. Zelos's spec list is the series one: 40mm, 11mm thick (not stated whether that includes the crystal), 20mm strap, 50m, sapphire crystal. Lug to lug 43mm per aBlogtoWatch and SeriousWatches' description; SeriousWatches' spec table for the A-4 says 42mm. AR coating per SeriousWatches, side not stated. The rehaut carries 12 synthetic rubies; Zelos: "new for the Avant range, the hour hands feature luminous paint" (lume type not stated). Sapphire display back in a steel caseback (photo). Came with a brown Horween and a black crocodile-print leather strap with quick-release spring bars, a deployant clasp, a leather watch roll and a wooden box; no bracelet. Crown, crystal shape and weight not published.

Last verified: 2026-10-21. Edit or correct this entry.

Sources