Seiko Cal. 4481 - 278

This Hand-Winding model from 1983 features a 45mm Two-Tone case. It features a Green dial protected by a Mineral crystal and offers 90m of water resistance. [seikata-wm-ce5f6db2ad9a]

Also known as: Monster, Silverwave

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

8.6mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

90m

Dial Color

Green

Jewels

22j

Frequency

21,600 bph

Power Reserve

50 hours

Year

1983

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