Seiko Cal. 4436 - 320

This Automatic model from 1977 features a 41mm PVD Black case. It features a Silver dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-d2745339068e]

Also known as: Tuna, Crown

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

41mm

Case Thickness

13.9mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

190m

Dial Color

Silver

Jewels

29j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1977

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