Seiko Cal. 5645 - 836

The Seiko 5645-836 represents an important milestone in Seiko's 1989 lineup. Powered by the 5645 caliber with 35j jewels beating at 28,800 bph, it delivers a 46 hours power reserve. [seikata-wm-e0312095ba1a]

Also known as: Sportsmatic, Navigator

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

38mm

Case Thickness

15.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Cream

Jewels

35j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1989

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