Seiko Cal. 7140 - 133

This Spring Drive model from 1978 features a 45mm Hardlex-Coated Steel case. With its 20mm lug width and 10.5mm profile, it sits comfortably on most wrists. [seikata-wm-d8f1cc353f30]

Also known as: Tuna, Panda

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

45mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

40m

Dial Color

Navy

Jewels

20j

Frequency

28,800 bph

Power Reserve

49 hours

Year

1978

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