Seiko Cal. 5646 - 635

The Seiko 5646-635 represents an important milestone in Seiko's 1984 lineup. Powered by the 5646 caliber with 17j jewels beating at 28,800 bph, it delivers a 63 hours power reserve. [seikata-wm-7a47deb52dea]

Also known as: Bullhead

Specifications

Movement

Solar

Case Material

Titanium

Case Width

34mm

Case Thickness

13.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1984

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