Seiko Cal. 4478 - 175

Seiko 4478-175

This Quartz model from 1969 features a 39mm Two-Tone case. Powered by the 4478 caliber with 27j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-ee6ec2554d4b]

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
39mm
Case Thickness
15.4mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
60m
Dial Color
Green
Jewels
27j
Frequency
28,800 bph
Power Reserve
61 hours
Year
1969

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