Seiko Cal. 4446 - 438

Seiko 4446-438

This Hand-Winding model from 1965 features a 45mm PVD Black case. Powered by the 4446 caliber with 19j jewels beating at 36,000 bph, it delivers a 38 hours power reserve. [seikata-wm-583977f8c1be]

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
45mm
Case Thickness
13.9mm
Lug Width
20mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
40m
Dial Color
Burgundy
Jewels
19j
Frequency
36,000 bph
Power Reserve
38 hours
Year
1965

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