Seiko Cal. 4574 - 312

This Spring Drive model from 1970 features a 40mm Titanium case. It features a Navy dial protected by a Acrylic crystal and offers 30m of water resistance. [seikata-wm-4a6078200b6d]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

40mm

Case Thickness

13.6mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

30m

Dial Color

Navy

Jewels

33j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1970

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