Seiko Cal. 7138 - 552

The Seiko 7138-552 represents an important milestone in Seiko's 1968 lineup. Powered by the 7138 caliber with 35j jewels beating at 28,800 bph, it delivers a 51 hours power reserve. [seikata-wm-24855c5bf675]

Also known as: Panda, Flighty

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

9.0mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

150m

Dial Color

White

Jewels

35j

Frequency

28,800 bph

Power Reserve

51 hours

Year

1968

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