Seiko Cal. 4451 - 681

Seiko 4451-681

The 4451-681 is a sought-after Hand-Winding piece from Seiko's golden era. The Rotating bezel and 34mm case give it a distinctive presence on the wrist. [seikata-wm-7e5d51a4b497]

Also known as: Sumo

Specifications

Movement
Hand-Winding
Case Material
Stainless Steel
Case Width
34mm
Case Thickness
13.1mm
Lug Width
22mm
Crystal
Mineral
Bezel
Rotating
Water Resistance
170m
Dial Color
Green
Jewels
25j
Frequency
21,600 bph
Power Reserve
53 hours
Year
1970

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seikata-wm-7e5d51a4b497