Seiko Cal. 7052 - 638

The Seiko 7052-638 represents an important milestone in Seiko's 1976 lineup. Powered by the 7052 caliber with 25j jewels beating at 21,600 bph, it delivers a 68 hours power reserve. [seikata-wm-5281b5fbcf2f]

Also known as: Crown

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

46mm

Case Thickness

12.4mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

30m

Dial Color

Cream

Jewels

25j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1976

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