Seiko Cal. 4547 - 320

The 4547-320 is a sought-after Spring Drive piece from Seiko's golden era. With its 20mm lug width and 14.4mm profile, it sits comfortably on most wrists. [seikata-wm-89378d9ca66d]

Also known as: Tuna, Bellmatic

Specifications

Movement

Spring Drive

Case Material

Titanium

Case Width

34mm

Case Thickness

14.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

180m

Dial Color

Cream

Jewels

26j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1978

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