Seiko Cal. 4436 - 691

This Spring Drive model from 1969 features a 34mm PVD Black case. It features a White dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-6d259b724c6c]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

34mm

Case Thickness

12.4mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

90m

Dial Color

White

Jewels

18j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1969

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