Seiko Cal. 4481 - 450

The 4481-450 is a sought-after Spring Drive piece from Seiko's golden era. The Rotating bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-ad9660110aa7]

Also known as: Monster, Navigator

Specifications

Movement

Spring Drive

Case Material

Stainless Steel

Case Width

40mm

Case Thickness

9.7mm

Lug Width

20mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

190m

Dial Color

Navy

Jewels

25j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1987

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