Seiko Cal. 6388 - 921

The 6388-921 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 6388 caliber with 34j jewels beating at 36,000 bph, it delivers a 63 hours power reserve. [seikata-wm-aaa07a185196]

Also known as: Turtle, Sumo

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

41mm

Case Thickness

12.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

34j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1966

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