Seiko Cal. 6139 - 991

The 6139-991 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6139 caliber with 27j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-e628e502963a]

Also known as: Bellmatic, World Timer

Specifications

Movement

Kinetic

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

90m

Dial Color

Cream

Jewels

27j

Frequency

36,000 bph

Power Reserve

60 hours

Year

1977

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