Seiko Cal. 4417 - 161

The 4417-161 is a sought-after Spring Drive piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Acrylic crystal and offers 110m of water resistance. [seikata-wm-0284f590d55e]

Also known as: Helmet, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

15.5mm

Lug Width

19mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

17j

Frequency

36,000 bph

Power Reserve

55 hours

Year

1977

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