Seiko Cal. 6390 - 128

The 6390-128 is a sought-after Solar piece from Seiko's golden era. Powered by the 6390 caliber with 32j jewels beating at 36,000 bph, it delivers a 66 hours power reserve. [seikata-wm-be26967dd309]

Also known as: Sportsmatic, Flighty

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

46mm

Case Thickness

13.6mm

Lug Width

19mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

70m

Dial Color

Silver

Jewels

32j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1972

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