Seiko Cal. 7161 - 318

This Hand-Winding model from 1969 features a 40mm Stainless Steel case. With its 18mm lug width and 9.0mm profile, it sits comfortably on most wrists. [seikata-wm-2ab33f0e47fc]

Also known as: Sumo

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

9.0mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

170m

Dial Color

Champagne

Jewels

23j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1969

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