Seiko Cal. 5637 - 854

The Seiko 5637-854 represents an important milestone in Seiko's 1966 lineup. Powered by the 5637 caliber with 29j jewels beating at 21,600 bph, it delivers a 57 hours power reserve. [seikata-wm-104858609c76]

Also known as: Bellmatic, Emperor

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

40mm

Case Thickness

10.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

29j

Frequency

21,600 bph

Power Reserve

57 hours

Year

1966

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