Seiko Cal. 6337 - 645

The 6337-645 is a sought-after Spring Drive piece from Seiko's golden era. It features a Cream dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-248af9b9832a]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

38mm

Case Thickness

8.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

80m

Dial Color

Cream

Jewels

26j

Frequency

21,600 bph

Power Reserve

47 hours

Year

1973

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