Seiko Cal. 3813 - 703

The 3813-703 is a sought-after Kinetic piece from Seiko's golden era. Powered by the 3813 caliber with 29j jewels beating at 36,000 bph, it delivers a 41 hours power reserve. [seikata-wm-89bb0deddbf4]

Also known as: Helmet, World Timer

Specifications

Movement

Kinetic

Case Material

Two-Tone

Case Width

34mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Navy

Jewels

29j

Frequency

36,000 bph

Power Reserve

41 hours

Year

1971

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