Seiko Cal. 6638 - 255

The 6638-255 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 6638 caliber with 18j jewels beating at 36,000 bph, it delivers a 39 hours power reserve. [seikata-wm-93b89d73306a]

Also known as: Turtle

Specifications

Movement

Kinetic

Case Material

PVD Black

Case Width

36mm

Case Thickness

12.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

110m

Dial Color

Burgundy

Jewels

18j

Frequency

36,000 bph

Power Reserve

39 hours

Year

1965

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