Seiko Cal. 5635 - 379

The 5635-379 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5635 caliber with 33j jewels beating at 28,800 bph, it delivers a 57 hours power reserve. [seikata-wm-48fffb76f7d5]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

14.2mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

80m

Dial Color

White

Jewels

33j

Frequency

28,800 bph

Power Reserve

57 hours

Year

1986

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