Seiko Cal. 3872 - 291

This Spring Drive model from 1971 features a 41mm Hardlex-Coated Steel case. It features a Green dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-3962acd1fec0]

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

15.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

90m

Dial Color

Green

Jewels

32j

Frequency

21,600 bph

Power Reserve

52 hours

Year

1971

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