Seiko Cal. 4431 - 673

Seiko 4431-673

The Seiko 4431-673 represents an important milestone in Seiko's 1965 lineup. Powered by the 4431 caliber with 33j jewels beating at 21,600 bph, it delivers a 72 hours power reserve. [seikata-wm-8e4f5c430670]

Also known as: Samurai, Silverwave

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
39mm
Case Thickness
15.6mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
60m
Dial Color
Cream
Jewels
33j
Frequency
21,600 bph
Power Reserve
72 hours
Year
1965

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