Seiko Cal. 4550 - 230

This Spring Drive model from 1980 features a 45mm PVD Black case. It features a White dial protected by a Mineral crystal and offers 190m of water resistance. [seikata-wm-dc1fdff50f67]

Also known as: UFO

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

45mm

Case Thickness

8.0mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

190m

Dial Color

White

Jewels

22j

Frequency

21,600 bph

Power Reserve

65 hours

Year

1980

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