Seiko Cal. 7181 - 820

The 7181-820 is a sought-after Hand-Winding piece from Seiko's golden era. With its 19mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-5febd8a88c92]

Also known as: Tuna, Arnie

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

42mm

Case Thickness

8.4mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

150m

Dial Color

Blue Sunburst

Jewels

24j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1980

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