Citizen
Citizen Eco-Drive 37 mm Blue 18k
Photography on request
Front view
Dial, hands and bezel as delivered.
Case-back view
Case-back engraving and, where fitted, the sapphire display.
Movement
Calibre with its finishing and decoration.
On the wrist
Worn shot for proportion and strap drape.
Citizen · Eco-Drive
Citizen Eco-Drive 37 mm Blue 18k
Reference 28013OR.10
Reference at a glance
- Brand
- Citizen
- Collection
- Eco-Drive
- Model
- Citizen Eco-Drive 37 mm Blue 18k
- Reference number
- 28013OR.10
- Year / era
- 2010 · 2010s — modern production
- Complication
- Annual calendar
- Movement
- High-accuracy quartz
- Case material
- 18k white gold
- Dial type
- Blue "Grande Tapisserie"
- Strap / bracelet
- Oyster bracelet
- Water resistance
- 30 m
- Limited-edition status
- Limited edition of 50 pieces
Case, dial & bracelet
- Case dimensions
- 37 mm
- Case thickness
- 10.2 mm
- Case material
- 18k white gold
- Bezel
- Octagonal with 8 hexagonal screws
- Crystal
- Flat sapphire with Cyclops lens
- Dial
- Blue "Grande Tapisserie"
- Hands
- Mercedes hour hand with Chromalight display
- Indexes
- Applied Arabic numerals with luminous coating
- Bracelet / strap
- Oyster bracelet
- Clasp / buckle
- Folding clasp in matching case metal
- Water resistance
- 30 m
Movement
- Movement / calibre
- Calibre 37A — High-accuracy quartz
- Movement type
- Automatic, self-winding
- Frequency
- 36,000 vph (5 Hz)
- Power reserve
- 65 hours
- Number of jewels
- 31 jewels
- Complications
- Annual calendar
- Functions
- Hours, minutes, seconds, date
- Watchmaker
- Assembled and regulated by a single watchmaker, who signs off the piece before casing.
Production & market
- Production period
- 2010 – 2019
- Limited-edition quantity
- 50 pieces
- Current market information
- Consistently trades above retail; waiting lists at authorised dealers remain long.
Designer
In-house design studio
The reference was drawn by the manufacture's internal design office, where case, dial and movement architects work alongside the watchmakers rather than as an outside commission.
Historical significance
Citizen Eco-Drive 37 mm Blue 18k sits within Citizen's Eco-Drive line, introduced in 2010. It carries the house codes established since 1918 — 18k white gold case, blue "grande tapisserie" dial and high-accuracy 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 bracelet tapers across its length, which is why the profile looks thinner on the wrist than the specification suggests.
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
1918
Kamekichi Yamazaki founds Citizen in Japan.
1969
The quartz era forces Citizen to redefine mechanical watchmaking.
1990
Citizen enters the modern collector market with its signature lines.
2024
Citizen continues to produce Eco-Drive, Promaster, Series 8 and other icons in limited numbers.