Seiko Cal. 6648 - 145

This Spring Drive model from 1977 features a 35mm PVD Black case. It features a Navy dial protected by a Acrylic crystal and offers 120m of water resistance. [seikata-wm-5d4490e9e064]

Also known as: UFO, Navigator

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

35mm

Case Thickness

8.5mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Rotating

Water Resistance

120m

Dial Color

Navy

Jewels

22j

Frequency

28,800 bph

Power Reserve

52 hours

Year

1977

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