Seiko Cal. 6390 - 952

The Seiko 6390-952 represents an important milestone in Seiko's 1975 lineup. Powered by the 6390 caliber with 22j jewels beating at 28,800 bph, it delivers a 47 hours power reserve. [seikata-wm-9f00d8d6a8f2]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

45mm

Case Thickness

14.6mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

22j

Frequency

28,800 bph

Power Reserve

47 hours

Year

1975

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