Seiko Cal. 4478 - 397

Seiko 4478-397

The Seiko 4478-397 represents an important milestone in Seiko's 1969 lineup. Powered by the 4478 caliber with 32j jewels beating at 28,800 bph, it delivers a 37 hours power reserve. [seikata-wm-45cc5bb2e77b]

Also known as: Monster

Specifications

Movement
Automatic
Case Material
Gold-Plated
Case Width
37mm
Case Thickness
15.1mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
80m
Dial Color
Burgundy
Jewels
32j
Frequency
28,800 bph
Power Reserve
37 hours
Year
1969

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