Seiko Cal. 7181 - 944

The 7181-944 is a sought-after Spring Drive piece from Seiko's golden era. With its 19mm lug width and 8.2mm profile, it sits comfortably on most wrists. [seikata-wm-ea992db2d5f3]

Also known as: Sumo, Arnie

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

45mm

Case Thickness

8.2mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

120m

Dial Color

Silver

Jewels

28j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1978

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