Seiko Cal. 7191 - 544

This Spring Drive model from 1966 features a 40mm Stainless Steel case. It features a Black dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-1ba21ba07740]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

15.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Black

Jewels

24j

Frequency

21,600 bph

Power Reserve

51 hours

Year

1966

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