Seiko Cal. 4491 - 170

The 4491-170 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 4491 caliber with 30j jewels beating at 21,600 bph, it delivers a 50 hours power reserve. [seikata-wm-a5ee9c73772a]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

38mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

170m

Dial Color

Burgundy

Jewels

30j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1981

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