Seiko Cal. 4421 - 277

Seiko 4421-277

The 4421-277 is a sought-after Spring Drive piece from Seiko's golden era. It features a Champagne dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-4ea64e9aff2b]

Also known as: Bullhead

Specifications

Movement
Spring Drive
Case Material
Stainless Steel
Case Width
43mm
Case Thickness
8.7mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
30m
Dial Color
Champagne
Jewels
28j
Frequency
28,800 bph
Power Reserve
55 hours
Year
1968

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