Seiko Cal. 5642 - 637

The Seiko 5642-637 represents an important milestone in Seiko's 1993 lineup. Powered by the 5642 caliber with 19j jewels beating at 28,800 bph, it delivers a 41 hours power reserve. [seikata-wm-c3c80aace58b]

Also known as: Pogue, Goldfeather

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

36mm

Case Thickness

13.4mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Black

Jewels

19j

Frequency

28,800 bph

Power Reserve

41 hours

Year

1993

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