Seiko Cal. 5657 - 141

Released in 1965, the Cal. 5657 with design code 141 was part of Seiko's domestic market collection. It features a Navy dial protected by a Acrylic crystal and offers 100m of water resistance. [seikata-wm-bbd2b586f377]

Also known as: Sea Horse

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

15.8mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

100m

Dial Color

Navy

Jewels

30j

Frequency

28,800 bph

Power Reserve

45 hours

Year

1965

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