Seiko Cal. 4478 - 283

Seiko 4478-283

The Seiko 4478-283 represents an important milestone in Seiko's 1991 lineup. Powered by the 4478 caliber with 36j jewels beating at 36,000 bph, it delivers a 60 hours power reserve. [seikata-wm-2add91101f33]

Also known as: Bullhead, Silverwave

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
46mm
Case Thickness
13.6mm
Lug Width
21mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
170m
Dial Color
Cream
Jewels
36j
Frequency
36,000 bph
Power Reserve
60 hours
Year
1991

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