Seiko Cal. 6637 - 714

The Seiko 6637-714 represents an important milestone in Seiko's 1980 lineup. It features a Silver dial protected by a Mineral crystal and offers 200m of water resistance. [seikata-wm-f698d8a45983]

Also known as: World Timer

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

8.1mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Silver

Jewels

26j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1980

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