Seiko Cal. 3871 - 318

This Spring Drive model from 1967 features a 41mm PVD Black case. It features a White dial protected by a Sapphire crystal and offers 90m of water resistance. [seikata-wm-179770e085c6]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

10.5mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

90m

Dial Color

White

Jewels

25j

Frequency

21,600 bph

Power Reserve

54 hours

Year

1967

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