Seiko Cal. 6639 - 191

The Seiko 6639-191 represents an important milestone in Seiko's 1967 lineup. Powered by the 6639 caliber with 30j jewels beating at 28,800 bph, it delivers a 36 hours power reserve. [seikata-wm-9e44a622b481]

Also known as: Panda, Bullhead

Specifications

Movement

Solar

Case Material

Stainless Steel

Case Width

45mm

Case Thickness

9.8mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

130m

Dial Color

Cream

Jewels

30j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1967

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