Mido Commander Ocean Star Datoday Chronometer gentleman's wristwatch, reference 8439
Record status
Individual type · partial
Period
1970s/1980s
This gentleman's wristwatch is a Mido Commander Ocean Star Datoday Chronometer, model reference 8439, dating to the 1970s or 1980s. The watch features a gold-plated case paired with a stainless steel case back.
The gold-toned dial is distinguished by applied Mido signature branding, an applied 'Chronometer' script, and the printed 'OCEAN STAR datoday' designation. It displays the time with black-edged baton hands featuring luminous inserts and a gold-coloured centre seconds hand. The hour markers consist of applied square indices with black framing and luminous dots, complemented by a gold-framed day and date aperture at the 3 o'clock position.
The timepiece is powered by an automatic, 25-jewel movement with official chronometer certification. It is fitted with a fluted, gold-coloured crown and a black leather strap with reptile embossing and a gold-coloured folding clasp. The case measures 36 mm in diameter and 11.4 mm in height, with a strap length of 23 cm. The 'Ocean Star' nomenclature signifies Mido’s proprietary sealing system.
Evidence at a glance
- Linked sources
- 1
- Photograph views
- 1
- Catalogue references
- 0
Counts describe this entry’s documentation, not authenticity, rarity or completeness. Photographs may show one specimen; check each caption and licence.
Physical characteristics
- Clasp
- Gold-coloured folding clasp
- Strap
- Black leather with reptile embossing
- Height
- 11.4 mm
- Diameter
- 36 mm
- Case back
- Stainless steel
- Strap length
- 23 cm
- Case material
- Gold-plated
Technical characteristics
- Jewels
- 25
- Features
- Chronometer certification, day/date aperture
- Movement
- Automatic
- Reference
- 8439
- Serial number
- 9988138
Design
- Hands
- Black-edged baton with luminous inserts, gold-coloured centre seconds
- Indices
- Applied square with black framing and luminous dots
- Dial colour
- Gold-toned
Identification
- Source note
- Described from a single auction-house listing published on Invaluable (reproduced with Invaluable's permission). Details apply to that one example; other examples of the type may differ, and the listing is supplementary evidence, not authentication.
- Maker named in listing
- Mido
Catalogue references
No catalogue numbers recorded. Numbers are only published once transcribed from a verified edition of a standard catalogue — they are never inferred.