Seiko Cal. 5636 - 748

The Seiko 5636-748 represents an important milestone in Seiko's 1977 lineup. Powered by the 5636 caliber with 31j jewels beating at 28,800 bph, it delivers a 40 hours power reserve. [seikata-wm-4efc9fbaeb58]

Also known as: Crown

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

40mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

White

Jewels

31j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1977

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