Seiko Cal. 5634 - 857

The Seiko 5634-857 represents an important milestone in Seiko's 1996 lineup. Powered by the 5634 caliber with 18j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-1c06fc4de80b]

Also known as: Monster, Sportsmatic

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

34mm

Case Thickness

8.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Cream

Jewels

18j

Frequency

28,800 bph

Power Reserve

37 hours

Year

1996

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