Seiko Cal. 5685 - 638

The 5685-638 is a sought-after Quartz piece from Seiko's golden era. Powered by the 5685 caliber with 24j jewels beating at 36,000 bph, it delivers a 57 hours power reserve. [seikata-wm-5088d553b088]

Also known as: Helmet, Crown

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

46mm

Case Thickness

13.8mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1982

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