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Citizen Eco-Drive 42 mm Black Grade

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 · Eco-Drive

Citizen Eco-Drive 42 mm Black Grade

Reference 38106OR.56

Reference at a glance

Brand
Citizen
Collection
Eco-Drive
Model
Citizen Eco-Drive 42 mm Black Grade
Reference number
38106OR.56
Year / era
1995 · 1990s — mechanical revival
Complication
Tourbillon
Movement
Spring Drive
Case material
Grade 5 titanium
Dial type
Black lacquer
Strap / bracelet
NATO textile strap
Water resistance
500 m
Limited-edition status
Regular production, not a limited edition
Compare this reference

Case, dial & bracelet

Case dimensions
42 mm
Case thickness
14.1 mm
Case material
Grade 5 titanium
Bezel
Smooth polished
Crystal
Flat sapphire with Cyclops lens
Dial
Black lacquer
Hands
Skeletonised sword hands, white luminescent
Indexes
Diamond-set hour markers
Bracelet / strap
NATO textile strap
Clasp / buckle
Folding clasp in matching case metal
Water resistance
500 m

Movement

Movement / calibre
Calibre 74E — Spring Drive
Movement type
Automatic with micro-rotor
Frequency
25,200 vph (3.5 Hz)
Power reserve
55 hours
Number of jewels
37 jewels
Complications
Tourbillon
Functions
Hours, minutes, small seconds
Watchmaker
Assembled and regulated by a single watchmaker, who signs off the piece before casing.

Production & market

Production period
1995 – 2002
Limited-edition quantity
Not applicable
Current market information
Values have stabilised after the 2022 correction; condition and box-and-papers drive the premium.

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 Eco-Drive 42 mm Black Grade sits within Citizen's Eco-Drive line, introduced in 1995. It carries the house codes established since 1918 — grade 5 titanium case, black lacquer dial and spring drive — and is one of the references collectors use to date the evolution of the collection.

Interesting facts

  • The movement's bridges are decorated even where they will never be seen once the watch is cased.
  • The bracelet tapers across its length, which is why the profile looks thinner on the wrist than the specification suggests.
  • 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.

More Eco-Drive