Seiko Cal. 4436 - 830

The Seiko 4436-830 represents an important milestone in Seiko's 1982 lineup. Powered by the 4436 caliber with 18j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-e2a8a4729cbc]

Also known as: Sumo, Flighty

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

15.3mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Silver

Jewels

18j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1982

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