Seiko Cal. 6658 - 640

Seiko 6658-640

The 6658-640 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6658 caliber with 19j jewels beating at 36,000 bph, it delivers a 70 hours power reserve. [seikata-wm-53adec87262d]

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
39mm
Case Thickness
13.3mm
Lug Width
18mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
80m
Dial Color
Navy
Jewels
19j
Frequency
36,000 bph
Power Reserve
70 hours
Year
1999

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seikata-wm-53adec87262d