Seiko Cal. 3848 - 731

Seiko 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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