Seiko Cal. 4436 - 431

The Seiko 4436-431 represents an important milestone in Seiko's 1983 lineup. It features a Cream dial protected by a Sapphire crystal and offers 70m of water resistance. [seikata-wm-17373dd16832]

Also known as: Tuna, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

34mm

Case Thickness

10.3mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Cream

Jewels

18j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1983

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