Seiko Cal. 6638 - 136

Seiko 6638-136

This Spring Drive model from 1992 features a 46mm Two-Tone case. With its 22mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-f0b8e319ded0]

Also known as: Turtle, Tuna

Specifications

Movement
Spring Drive
Case Material
Two-Tone
Case Width
46mm
Case Thickness
12.1mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
170m
Dial Color
Black
Jewels
33j
Frequency
36,000 bph
Power Reserve
52 hours
Year
1992

Related Models

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