Seiko Cal. 5637 - 626

The 5637-626 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5637 caliber with 27j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-9f41eec52842]

Also known as: Panda, Rally

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

8.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

40m

Dial Color

Silver

Jewels

27j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1977

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