Seiko Cal. 4477 - 904

Seiko 4477-904

The 4477-904 is a sought-after Hand-Winding piece from Seiko's golden era. It features a White dial protected by a Mineral crystal and offers 140m of water resistance. [seikata-wm-517fa303c5b5]

Also known as: Monster, Helmet

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
45mm
Case Thickness
8.5mm
Lug Width
21mm
Crystal
Mineral
Bezel
Bidirectional
Water Resistance
140m
Dial Color
White
Jewels
19j
Frequency
36,000 bph
Power Reserve
38 hours
Year
1967

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