Seiko Cal. 7140 - 477

Released in 1974, the Cal. 7140 with design code 477 was part of Seiko's domestic market collection. Powered by the 7140 caliber with 27j jewels beating at 36,000 bph, it delivers a 51 hours power reserve. [seikata-wm-5c11b7432ceb]

Also known as: Sumo, Rally

Specifications

Movement

Solar

Case Material

Titanium

Case Width

40mm

Case Thickness

15.3mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

120m

Dial Color

Navy

Jewels

27j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1974

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