Seiko Cal. 5665 - 377

This Spring Drive model from 1975 features a 41mm PVD Black case. With its 22mm lug width and 12.8mm profile, it sits comfortably on most wrists. [seikata-wm-733473cc44ca]

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

41mm

Case Thickness

12.8mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Green

Jewels

30j

Frequency

21,600 bph

Power Reserve

37 hours

Year

1975

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