Seiko Cal. 4521 - 371

This Spring Drive model from 1980 features a 44mm Two-Tone case. It features a Cream dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-3b83904549ed]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

44mm

Case Thickness

15.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

100m

Dial Color

Cream

Jewels

35j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1980

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