Seiko Cal. 7113 - 378

The 7113-378 is a sought-after Quartz piece from Seiko's golden era. Powered by the 7113 caliber with 26j jewels beating at 36,000 bph, it delivers a 61 hours power reserve. [seikata-wm-aad7ecba70f7]

Also known as: Tuna, Sportsmatic

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

37mm

Case Thickness

13.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

90m

Dial Color

Burgundy

Jewels

26j

Frequency

36,000 bph

Power Reserve

61 hours

Year

1982

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