Seiko Cal. 6638 - 839

The Seiko 6638-839 represents an important milestone in Seiko's 1994 lineup. Powered by the 6638 caliber with 21j jewels beating at 28,800 bph, it delivers a 62 hours power reserve. [seikata-wm-8a363f708874]

Also known as: Rally, Arnie

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

45mm

Case Thickness

8.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Burgundy

Jewels

21j

Frequency

28,800 bph

Power Reserve

62 hours

Year

1994

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