Seiko Cal. 4557 - 706

This Spring Drive model from 1965 features a 39mm Titanium case. The Bidirectional bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-3092946f7223]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

39mm

Case Thickness

12.9mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Navy

Jewels

18j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1965

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