Seiko Cal. 6639 - 928

Seiko 6639-928

The 6639-928 is a sought-after Spring Drive piece from Seiko's golden era. It features a Champagne dial protected by a Acrylic crystal and offers 80m of water resistance. [seikata-wm-911ed6476f60]

Also known as: Monster, Panda

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
38mm
Case Thickness
14.6mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
80m
Dial Color
Champagne
Jewels
19j
Frequency
36,000 bph
Power Reserve
57 hours
Year
1966

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