Seiko Cal. 6639 - 542

Seiko 6639-542

This Hand-Winding model from 1968 features a 43mm Gold-Plated case. With its 19mm lug width and 10.9mm profile, it sits comfortably on most wrists. [seikata-wm-1dc959b84b64]

Also known as: Turtle

Specifications

Movement
Hand-Winding
Case Material
Gold-Plated
Case Width
43mm
Case Thickness
10.9mm
Lug Width
19mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
150m
Dial Color
Silver
Jewels
27j
Frequency
21,600 bph
Power Reserve
46 hours
Year
1968

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