Seiko Cal. 6657 - 386

Seiko 6657-386

The 6657-386 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6657 caliber with 18j jewels beating at 36,000 bph, it delivers a 36 hours power reserve. [seikata-wm-7b9f96f25387]

Also known as: Tuna

Specifications

Movement
Kinetic
Case Material
Stainless Steel
Case Width
42mm
Case Thickness
13.4mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
140m
Dial Color
Silver
Jewels
18j
Frequency
36,000 bph
Power Reserve
36 hours
Year
1976

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seikata-wm-7b9f96f25387