Seiko Cal. 0790 - 657

The Seiko 0790-657 represents an important milestone in Seiko's 1977 lineup. Powered by the 0790 caliber with 31j jewels beating at 36,000 bph, it delivers a 65 hours power reserve. [seikata-wm-e9a876e25a1c]

Also known as: Turtle, Shogun

Specifications

Movement

Solar

Case Material

Titanium

Case Width

41mm

Case Thickness

8.2mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

120m

Dial Color

Navy

Jewels

31j

Frequency

36,000 bph

Power Reserve

65 hours

Year

1977

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