Seiko Cal. 5636 - 923

The Seiko 5636-923 represents an important milestone in Seiko's 1973 lineup. It features a Black dial protected by a Acrylic crystal and offers 180m of water resistance. [seikata-wm-66e327fabc4d]

Also known as: Sumo, UFO

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

46mm

Case Thickness

13.3mm

Lug Width

22mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

180m

Dial Color

Black

Jewels

36j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1973

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