Seiko Cal. 5671 - 663

Seiko 5671-663

This Quartz model from 1968 features a 46mm Two-Tone case. The Inner Rotating bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-9fa3c635988f]

Also known as: Helmet, Baby Tuna

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
46mm
Case Thickness
8.4mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
150m
Dial Color
Champagne
Jewels
28j
Frequency
28,800 bph
Power Reserve
44 hours
Year
1968

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