Seiko Cal. 4547 - 100

This Hand-Winding model from 1978 features a 45mm Titanium case. With its 21mm lug width and 12.6mm profile, it sits comfortably on most wrists. [seikata-wm-016c61f6f9e8]

Also known as: World Timer

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

45mm

Case Thickness

12.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

80m

Dial Color

Silver

Jewels

26j

Frequency

21,600 bph

Power Reserve

48 hours

Year

1978

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