Seiko Cal. 7163 - 481

This Spring Drive model from 1984 features a 46mm Two-Tone case. With its 20mm lug width and 9.3mm profile, it sits comfortably on most wrists. [seikata-wm-20a928f6c6ea]

Also known as: Tuna, Helmet

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

46mm

Case Thickness

9.3mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

190m

Dial Color

Green

Jewels

31j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1984

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