Seiko Cal. 5657 - 837

The Seiko 5657-837 represents an important milestone in Seiko's 1994 lineup. With its 20mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-18ad3c6733ca]

Also known as: Silverwave, Sportsmatic

Specifications

Movement

Quartz

Case Material

Two-Tone

Case Width

44mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Cream

Jewels

30j

Frequency

21,600 bph

Power Reserve

44 hours

Year

1994

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