Seiko Cal. 3890 - 307

Seiko 3890-307

This Spring Drive model from 1989 features a 42mm Titanium case. The Inner Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-d31bfc7e8d5e]

Also known as: Helmet, Flighty

Specifications

Movement
Spring Drive
Case Material
Titanium
Case Width
42mm
Case Thickness
14.3mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
100m
Dial Color
Burgundy
Jewels
31j
Frequency
28,800 bph
Power Reserve
60 hours
Year
1989

Related Models

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