Seiko Cal. 4557 - 362

This Spring Drive model from 1965 features a 37mm Two-Tone case. It features a Navy dial protected by a Acrylic crystal and offers 40m of water resistance. [seikata-wm-b5f028bbf1e8]

Also known as: Shogun, Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

37mm

Case Thickness

11.7mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

20j

Frequency

28,800 bph

Power Reserve

69 hours

Year

1965

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