Seiko Cal. 4435 - 561

Seiko 4435-561

The 4435-561 is a sought-after Spring Drive piece from Seiko's golden era. The Coin-Edge bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-970b1248f8e2]

Also known as: Monster, Tuna

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
46mm
Case Thickness
9.0mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Coin-Edge
Water Resistance
60m
Dial Color
Silver
Jewels
21j
Frequency
36,000 bph
Power Reserve
45 hours
Year
1981

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