Seiko Cal. 5691 - 957

The Seiko 5691-957 represents an important milestone in Seiko's 1994 lineup. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-b5d50d40bb82]

Also known as: UFO, Crown

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

160m

Dial Color

Navy

Jewels

36j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1994

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