Seiko Cal. 5657 - 427

The Seiko 5657-427 represents an important milestone in Seiko's 1998 lineup. Powered by the 5657 caliber with 34j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-27b0dc4c6c09]

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

11.3mm

Lug Width

18mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Silver

Jewels

34j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1998

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