Seiko Cal. 5641 - 285

Seiko 5641-285

The Seiko 5641-285 represents an important milestone in Seiko's 1968 lineup. Powered by the 5641 caliber with 35j jewels beating at 28,800 bph, it delivers a 43 hours power reserve. [seikata-wm-4281ebcc47a5]

Also known as: UFO, Baby Tuna

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
35mm
Case Thickness
13.5mm
Lug Width
21mm
Crystal
Acrylic
Bezel
Fixed
Water Resistance
30m
Dial Color
Burgundy
Jewels
35j
Frequency
28,800 bph
Power Reserve
43 hours
Year
1968

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