Seiko Cal. 5285 - 641

The Seiko 5285-641 represents an important milestone in Seiko's 1976 lineup. Powered by the 5285 caliber with 27j jewels beating at 28,800 bph, it delivers a 54 hours power reserve. [seikata-wm-d2d3cf8aa8b2]

Also known as: Arnie

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

10.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Green

Jewels

27j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1976

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