Seiko Cal. 6391 - 365

The 6391-365 is a sought-after Quartz piece from Seiko's golden era. Powered by the 6391 caliber with 34j jewels beating at 28,800 bph, it delivers a 66 hours power reserve. [seikata-wm-4fa30013eead]

Also known as: Helmet, Goldfeather

Specifications

Movement

Quartz

Case Material

Titanium

Case Width

35mm

Case Thickness

8.3mm

Lug Width

19mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

190m

Dial Color

Green

Jewels

34j

Frequency

28,800 bph

Power Reserve

66 hours

Year

1976

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