Seiko Cal. 5637 - 858

The Seiko 5637-858 represents an important milestone in Seiko's 1999 lineup. Powered by the 5637 caliber with 36j jewels beating at 21,600 bph, it delivers a 47 hours power reserve. [seikata-wm-bdfeeb6531ee]

Also known as: Sea Horse

Specifications

Movement

Solar

Case Material

Titanium

Case Width

46mm

Case Thickness

12.6mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

140m

Dial Color

Silver

Jewels

36j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1999

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