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Citizen Promaster 36 mm Green Stainless

Photography on request

Front view

Front view

Dial, hands and bezel as delivered.

Case-back view

Case-back view

Case-back engraving and, where fitted, the sapphire display.

Movement

Movement

Calibre with its finishing and decoration.

On the wrist

On the wrist

Worn shot for proportion and strap drape.

Citizen · Promaster

Citizen Promaster 36 mm Green Stainless

Reference 39459ST.96

Reference at a glance

Brand
Citizen
Collection
Promaster
Model
Citizen Promaster 36 mm Green Stainless
Reference number
39459ST.96
Year / era
1986 · 1980s — mechanical revival
Complication
Chronograph
Movement
Eco-Drive solar quartz
Case material
Stainless steel
Dial type
Green sunburst
Strap / bracelet
Alligator leather with folding clasp
Water resistance
500 m
Limited-edition status
Regular production, not a limited edition
Compare this reference

Case, dial & bracelet

Case dimensions
36 mm
Case thickness
12.6 mm
Case material
Stainless steel
Bezel
Fixed brushed titanium
Crystal
Flat sapphire with Cyclops lens
Dial
Green sunburst
Hands
Faceted dauphine hands, polished by hand
Indexes
Applied faceted white-gold indexes
Bracelet / strap
Alligator leather with folding clasp
Clasp / buckle
Folding clasp in matching case metal
Water resistance
500 m

Movement

Movement / calibre
Calibre 63A — Eco-Drive solar quartz
Movement type
Automatic, self-winding
Frequency
36,000 vph (5 Hz)
Power reserve
38 hours
Number of jewels
25 jewels
Complications
Chronograph
Functions
GMT second time zone, date
Watchmaker
Finishing, assembly and timing are carried out in the manufacture's own atelier.

Production & market

Production period
1986 – 1999
Limited-edition quantity
Not applicable
Current market information
Trades close to retail on the secondary market, with steady demand for full-set examples.

Designer

Marc Newson

Marc Newson is an Australian industrial designer whose work spans Qantas cabins, Apple hardware and Jaeger-LeCoultre's Atmos clocks; his watch design reduces the object to pure geometry and legibility.

Historical significance

Citizen Promaster 36 mm Green Stainless sits within Citizen's Promaster line, introduced in 1986. It carries the house codes established since 1918 — stainless steel case, green sunburst dial and eco-drive solar quartz — and is one of the references collectors use to date the evolution of the collection.

Interesting facts

  • The case is finished by hand, alternating polished and satin-brushed surfaces in a single pass so the edges stay razor sharp.
  • The reference was originally planned as a one-year run and stayed in the catalogue for well over a decade.
CI

The House

Citizen

Brand facts

Founding year
1918
Founder
Kamekichi Yamazaki
Headquarters
Japan
Tier
Japanese
Major collections
Eco-Drive, Promaster, Series 8, The Citizen, Attesa
Signature technologies
Certified chronometer regulation · Shock-absorbing movement mounting · Composite and ceramic case materials
Famous movements
High-accuracy quartz · Spring Drive · Automatic, 24 jewels · Eco-Drive solar quartz
Notable watches
Citizen Eco-Drive 41 mm Slate Sapphire (1981) · Citizen Eco-Drive 42 mm Black Grade (1995) · Citizen Eco-Drive 38 mm Slate 18k (1991) · Citizen Eco-Drive 38 mm Mother-of-pearl 18k (1975)

Brand history

Citizen has spent more than 108 years refining a single idea: a watch should outlive its owner. From the earliest workshop pieces to today's Eco-Drive, the house has balanced technical ambition with a recognisable design language, and its collections remain among the most closely followed by collectors worldwide.

Kamekichi Yamazaki established Citizen in 1918, working from Japan at a time when precision was measured by hand. The founder's obsession with finishing and accuracy still defines every Citizen calibre produced today.

Historical milestones

  1. 1918

    Kamekichi Yamazaki founds Citizen in Japan.

  2. 1969

    The quartz era forces Citizen to redefine mechanical watchmaking.

  3. 1990

    Citizen enters the modern collector market with its signature lines.

  4. 2024

    Citizen continues to produce Eco-Drive, Promaster, Series 8 and other icons in limited numbers.

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