The Bronze Field Guide

Gruppo Gamma Peacemaker Bronze

PN-20

The Gruppo Gamma Peacemaker Bronze is a current-production watch with a cusn8 bronze case. It is priced close to the $895 median across the guide. The caseback is open, so the movement is visible.

All Gruppo Gamma watchesBronze other watchesCuSn8Skin-safe backDisplay back
Price
$972
Alloy
CuSn8 marine bronze
Water resistance
200 m
Caseback
Steel
Reference
PN-20
Type
Other
Case diameter
43.0 mm
Thickness
13 mm
Lug-to-lug
52.5 mm
Origin
Singapore
Movement
Swiss Sellita SW219-1 hand-wound
Caliber
SW219-1
Power reserve
42h
Complications
Time only
Construction
Assembled
Nickel-free
No (steel contact)
Bracelet / strap
Leather strap
Crystal
Sapphire
Display back
Yes
Dial
Blue gradient fume sandwich dial with small seconds
Dial colours
Grey Blue
Lume
Swiss Super-LumiNova Old Radium (green glow)
Availability
Offered
Status
Current
Not published
Weight, Colour, Hardness, Surface treatment, Bronze bracelet
High confidence Verified Jul 2026 Source: Microbrand Store / Maker
Facts are free to cite with a link.
See it in the interactive guide

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CorumAdmiral 42 Automatic Bronze$4,70042.0 mm10 mm thickOthersame category · same style · similar sizeGruppo Ardito Lince BronzoGruppo ArditoLince Bronzo–42.0 mm12 mm thick105 gOthersame category · same style · similar size

More bronze watches from Gruppo Gamma

Gruppo Gamma Peacemaker Bronze (PN-07)Gruppo GammaPeacemaker Bronze (PN-07)$99043.0 mm13 mm thickField
Gruppo GammaVanguard Bronze–44.0 mmDiverGruppo Gamma Peacemaker Bronze (PN-19)Gruppo GammaPeacemaker Bronze (PN-19)$1,12043.0 mm13 mm thickOther

Frequently asked questions

Is the Gruppo Gamma Peacemaker Bronze nickel-free?

No. At least one part that touches the skin is nickel-bearing steel (commonly the caseback or clasp), so the guide does not mark it nickel-free.

What bronze alloy is the Gruppo Gamma Peacemaker Bronze?

The Gruppo Gamma Peacemaker Bronze has a cusn8 bronze case, though its caseback is steel. This is confirmed against the maker spec.

What size is the Gruppo Gamma Peacemaker Bronze?

It is 43.0 mm in diameter, 13 mm thick, 52.5 mm lug to lug, and water resistant to 200 m.

How much does the Gruppo Gamma Peacemaker Bronze cost, and is it available?

It is current-production and lists from $972.

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