Seiko Cal. 3848 - 731

The Seiko 3848-731 represents an important milestone in Seiko's 1982 lineup. Powered by the 3848 caliber with 31j jewels beating at 36,000 bph, it delivers a 48 hours power reserve. [seikata-wm-80961442bf50]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

11.6mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

190m

Dial Color

Black

Jewels

31j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1982

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