Seiko Cal. 4478 - 385

Seiko 4478-385

The Seiko 4478-385 represents an important milestone in Seiko's 1978 lineup. Powered by the 4478 caliber with 18j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-7f05558045e0]

Also known as: Monster

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
37mm
Case Thickness
11.4mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
160m
Dial Color
White
Jewels
18j
Frequency
36,000 bph
Power Reserve
55 hours
Year
1978

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