Seiko Cal. 6639 - 527

Seiko 6639-527

The 6639-527 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6639 caliber with 34j jewels beating at 28,800 bph, it delivers a 72 hours power reserve. [seikata-wm-20b9b9d7a4ed]

Also known as: Turtle, Samurai

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
40mm
Case Thickness
10.0mm
Lug Width
19mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
30m
Dial Color
Silver
Jewels
34j
Frequency
28,800 bph
Power Reserve
72 hours
Year
1997

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seikata-wm-20b9b9d7a4ed