Seiko Cal. 6642 - 770

Seiko 6642-770

This Spring Drive model from 1987 features a 38mm Two-Tone case. With its 19mm lug width and 9.0mm profile, it sits comfortably on most wrists. [seikata-wm-5856cd9c0e55]

Also known as: World Timer, Flighty

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
38mm
Case Thickness
9.0mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
70m
Dial Color
Champagne
Jewels
27j
Frequency
28,800 bph
Power Reserve
61 hours
Year
1987

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