Seiko Cal. 7181 - 424

The Seiko 7181-424 represents an important milestone in Seiko's 1978 lineup. Powered by the 7181 caliber with 23j jewels beating at 28,800 bph, it delivers a 56 hours power reserve. [seikata-wm-269a85da42ec]

Also known as: Golden Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

13.8mm

Lug Width

19mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

160m

Dial Color

White

Jewels

23j

Frequency

28,800 bph

Power Reserve

56 hours

Year

1978

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