Seiko Cal. 6686 - 638

Seiko 6686-638

The 6686-638 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6686 caliber with 30j jewels beating at 21,600 bph, it delivers a 71 hours power reserve. [seikata-wm-e566cf02fae9]

Also known as: Golden Tuna

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
34mm
Case Thickness
9.8mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Coin-Edge
Water Resistance
50m
Dial Color
Burgundy
Jewels
30j
Frequency
21,600 bph
Power Reserve
71 hours
Year
1995

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