Seiko Cal. 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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