Seiko Cal. 4436 - 940

The Seiko 4436-940 represents an important milestone in Seiko's 1969 lineup. Powered by the 4436 caliber with 23j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-c828e1b3d155]

Also known as: Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

41mm

Case Thickness

10.8mm

Lug Width

18mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

120m

Dial Color

Green

Jewels

23j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1969

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