Seiko Cal. 4571 - 161

The 4571-161 is a sought-after Hand-Winding piece from Seiko's golden era. With its 20mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-6289e1ec6be3]

Also known as: Sumo, Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

120m

Dial Color

Green

Jewels

32j

Frequency

36,000 bph

Power Reserve

51 hours

Year

1974

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