Seiko Cal. 5661 - 520

The Seiko 5661-520 represents an important milestone in Seiko's 1969 lineup. Powered by the 5661 caliber with 23j jewels beating at 21,600 bph, it delivers a 65 hours power reserve. [seikata-wm-4c2c617f8213]

Also known as: Samurai, Emperor

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

14.5mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

140m

Dial Color

Cream

Jewels

23j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1969

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