Seiko Cal. 5657 - 690

The Seiko 5657-690 represents an important milestone in Seiko's 1996 lineup. The Coin-Edge bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-1632b1965c9e]

Also known as: Sumo, Crown

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

46mm

Case Thickness

8.3mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Cream

Jewels

17j

Frequency

36,000 bph

Power Reserve

45 hours

Year

1996

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