Seiko Cal. 5664 - 181

Seiko 5664-181

This Automatic model from 1971 features a 46mm Hardlex-Coated Steel case. Powered by the 5664 caliber with 30j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-1c24cbadbab8]

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
12.0mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
60m
Dial Color
Burgundy
Jewels
30j
Frequency
36,000 bph
Power Reserve
63 hours
Year
1971

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