Seiko Cal. 5637 - 911

The Seiko 5637-911 represents an important milestone in Seiko's 1971 lineup. Powered by the 5637 caliber with 17j jewels beating at 21,600 bph, it delivers a 53 hours power reserve. [seikata-wm-1e3b8f7b9724]

Also known as: Crown

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

40mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Champagne

Jewels

17j

Frequency

21,600 bph

Power Reserve

53 hours

Year

1971

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