Seiko Cal. 6131 - 646

The Seiko 6131-646 represents an important milestone in Seiko's 1971 lineup. Powered by the 6131 caliber with 35j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-c68e8627d625]

Also known as: Emperor

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

39mm

Case Thickness

13.2mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Burgundy

Jewels

35j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1971

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