Seiko Cal. 4434 - 387

Seiko 4434-387

This Spring Drive model from 1986 features a 36mm Stainless Steel case. Powered by the 4434 caliber with 36j jewels beating at 21,600 bph, it delivers a 46 hours power reserve. [seikata-wm-8861237aa2d4]

Also known as: Sportsmatic

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
36mm
Case Thickness
15.9mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Fixed
Water Resistance
50m
Dial Color
Silver
Jewels
36j
Frequency
21,600 bph
Power Reserve
46 hours
Year
1986

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