Seiko Cal. 6391 - 202

The 6391-202 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6391 caliber with 25j jewels beating at 28,800 bph, it delivers a 60 hours power reserve. [seikata-wm-e93ab7cfea8b]

Also known as: Bullhead, UFO

Specifications

Movement

Automatic

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

12.0mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

200m

Dial Color

Black

Jewels

25j

Frequency

28,800 bph

Power Reserve

60 hours

Year

1965

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