Seiko Cal. 7138 - 670

Released in 1991, the Cal. 7138 with design code 670 was part of Seiko's domestic market collection. Powered by the 7138 caliber with 20j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-c3e9ed7f907c]

Also known as: Sea Horse, Emperor

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

36mm

Case Thickness

10.1mm

Lug Width

22mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

40m

Dial Color

Burgundy

Jewels

20j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1991

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