Seiko Cal. 6371 - 639

The Seiko 6371-639 represents an important milestone in Seiko's 1970 lineup. Powered by the 6371 caliber with 36j jewels beating at 21,600 bph, it delivers a 66 hours power reserve. [seikata-wm-e23a64b07355]

Also known as: Rally

Specifications

Movement

Solar

Case Material

Titanium

Case Width

39mm

Case Thickness

9.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

130m

Dial Color

Burgundy

Jewels

36j

Frequency

21,600 bph

Power Reserve

66 hours

Year

1970

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