Seiko Cal. 4478 - 230

Seiko 4478-230

The 4478-230 is a sought-after Automatic piece from Seiko's golden era. Powered by the 4478 caliber with 25j jewels beating at 36,000 bph, it delivers a 37 hours power reserve. [seikata-wm-5c0491d0cfd2]

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
42mm
Case Thickness
11.6mm
Lug Width
18mm
Crystal
Mineral
Bezel
Coin-Edge
Water Resistance
70m
Dial Color
Navy
Jewels
25j
Frequency
36,000 bph
Power Reserve
37 hours
Year
1981

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