Seiko Cal. 6639 - 205

This Spring Drive model from 1996 features a 36mm Titanium case. The Coin-Edge bezel and 36mm case give it a distinctive presence on the wrist. [seikata-wm-fc836db99675]

Also known as: Sumo, Crown

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

36mm

Case Thickness

13.9mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

100m

Dial Color

Cream

Jewels

36j

Frequency

21,600 bph

Power Reserve

59 hours

Year

1996

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