Seiko Cal. 3813 - 223

The 3813-223 is a sought-after Hand-Winding piece from Seiko's golden era. Powered by the 3813 caliber with 29j jewels beating at 28,800 bph, it delivers a 59 hours power reserve. [seikata-wm-3329cefd85d0]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

40mm

Case Thickness

15.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

30m

Dial Color

Silver

Jewels

29j

Frequency

28,800 bph

Power Reserve

59 hours

Year

1979

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