Seiko Cal. 4436 - 131

This Spring Drive model from 1990 features a 41mm Stainless Steel case. It features a Green dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-e8bc7289e38c]

Also known as: Turtle, Silverwave

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

41mm

Case Thickness

15.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

150m

Dial Color

Green

Jewels

21j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1990

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