Seiko Cal. 4563 - 238

This Spring Drive model from 1968 features a 43mm Two-Tone case. With its 18mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-ef9e85075b6c]

Also known as: Helmet, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

43mm

Case Thickness

8.4mm

Lug Width

18mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Black

Jewels

26j

Frequency

28,800 bph

Power Reserve

68 hours

Year

1968

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