Seiko Cal. 4538 - 715

This Spring Drive model from 1976 features a 46mm PVD Black case. With its 18mm lug width and 9.5mm profile, it sits comfortably on most wrists. [seikata-wm-9c4aabce41a9]

Also known as: Bellmatic

Specifications

Movement

Spring Drive

Case Material

PVD Black

Case Width

46mm

Case Thickness

9.5mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Silver

Jewels

31j

Frequency

36,000 bph

Power Reserve

43 hours

Year

1976

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