Seiko Cal. 5660 - 551

This Quartz model from 1966 features a 37mm PVD Black case. With its 22mm lug width and 14.1mm profile, it sits comfortably on most wrists. [seikata-wm-6488f2a1e380]

Also known as: Baby Tuna

Specifications

Movement

Quartz

Case Material

PVD Black

Case Width

37mm

Case Thickness

14.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Navy

Jewels

30j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1966

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