Seiko Cal. 6138 - 666

Seiko 6138-666

The 6138-666 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6138 caliber with 26j jewels beating at 36,000 bph, it delivers a 67 hours power reserve. [seikata-wm-18faec230025]

Also known as: Bullhead, Baby Tuna

Specifications

Movement
Kinetic
Case Material
Hardlex-Coated Steel
Case Width
37mm
Case Thickness
13.2mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Inner Rotating
Water Resistance
120m
Dial Color
Blue Sunburst
Jewels
26j
Frequency
36,000 bph
Power Reserve
67 hours
Year
1977

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