Seiko Cal. 5663 - 912

The Seiko 5663-912 represents an important milestone in Seiko's 1965 lineup. Powered by the 5663 caliber with 28j jewels beating at 28,800 bph, it delivers a 42 hours power reserve. [seikata-wm-bd487110ccc1]

Also known as: Turtle, Emperor

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

43mm

Case Thickness

8.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

190m

Dial Color

Navy

Jewels

28j

Frequency

28,800 bph

Power Reserve

42 hours

Year

1965

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