Seiko Cal. 5663 - 912

Seiko 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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