Seiko Cal. 4437 - 140

This Automatic model from 1972 features a 37mm PVD Black case. It features a Green dial protected by a Mineral crystal and offers 170m of water resistance. [seikata-wm-4175bc9dbe7f]

Also known as: Tuna, Sea Horse

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

37mm

Case Thickness

9.0mm

Lug Width

22mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

170m

Dial Color

Green

Jewels

20j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1972

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