Seiko Cal. 5646 - 855

The Seiko 5646-855 represents an important milestone in Seiko's 1983 lineup. Powered by the 5646 caliber with 26j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-b27f9d43a7ba]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

10.7mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

26j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1983

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