Seiko Cal. 4591 - 965

The Seiko 4591-965 represents an important milestone in Seiko's 1971 lineup. Powered by the 4591 caliber with 18j jewels beating at 21,600 bph, it delivers a 43 hours power reserve. [seikata-wm-0b72db4ef090]

Also known as: Emperor, Flighty

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

39mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

50m

Dial Color

Silver

Jewels

18j

Frequency

21,600 bph

Power Reserve

43 hours

Year

1971

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