Seiko Cal. 4510 - 687

This Spring Drive model from 1981 features a 46mm Gold-Plated case. With its 21mm lug width and 9.1mm profile, it sits comfortably on most wrists. [seikata-wm-a727d8020b91]

Also known as: UFO, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

46mm

Case Thickness

9.1mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Bidirectional

Water Resistance

80m

Dial Color

Burgundy

Jewels

27j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1981

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