Seiko Cal. 4557 - 661

Seiko 4557-661

The 4557-661 is a sought-after Automatic piece from Seiko's golden era. The Inner Rotating bezel and 42mm case give it a distinctive presence on the wrist. [seikata-wm-c8106a9dfff7]

Also known as: Bullhead

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
42mm
Case Thickness
13.4mm
Lug Width
21mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
40m
Dial Color
Silver
Jewels
24j
Frequency
21,600 bph
Power Reserve
52 hours
Year
1969

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