Seiko Cal. 6639 - 767

Seiko 6639-767

The 6639-767 is a sought-after Automatic piece from Seiko's golden era. It features a Cream dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-166ac3e670d2]

Also known as: Sportsmatic

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
43mm
Case Thickness
9.3mm
Lug Width
18mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
190m
Dial Color
Cream
Jewels
32j
Frequency
36,000 bph
Power Reserve
64 hours
Year
1985

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