Seiko Cal. 6639 - 925

Seiko 6639-925

The 6639-925 is a sought-after Quartz piece from Seiko's golden era. It features a Champagne dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-b019c01d6604]

Also known as: Shogun, Sea Horse

Specifications

Movement
Quartz
Case Material
Hardlex-Coated Steel
Case Width
42mm
Case Thickness
12.9mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
100m
Dial Color
Champagne
Jewels
26j
Frequency
28,800 bph
Power Reserve
58 hours
Year
1975

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