Seiko Cal. 5639 - 931

The 5639-931 is a sought-after Kinetic piece from Seiko's golden era. The Coin-Edge bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-acb884cefa12]

Also known as: World Timer

Specifications

Movement

Kinetic

Case Material

Hardlex-Coated Steel

Case Width

42mm

Case Thickness

15.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Champagne

Jewels

30j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1997

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