Seiko Cal. 7138 - 522

The 7138-522 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 7138 caliber with 28j jewels beating at 21,600 bph, it delivers a 48 hours power reserve. [seikata-wm-df54f331de51]

Also known as: Helmet, Sea Horse

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

38mm

Case Thickness

13.9mm

Lug Width

18mm

Crystal

Acrylic

Bezel

Fixed

Water Resistance

160m

Dial Color

White

Jewels

28j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1988

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