Seiko Cal. 6138 - 648

Seiko 6138-648

The 6138-648 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6138 caliber with 18j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-df5bb8c55dac]

Also known as: Tuna

Specifications

Movement
Kinetic
Case Material
PVD Black
Case Width
39mm
Case Thickness
13.1mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
40m
Dial Color
Cream
Jewels
18j
Frequency
21,600 bph
Power Reserve
68 hours
Year
1999

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