Seiko Cal. 4561 - 677

The Seiko 4561-677 represents an important milestone in Seiko's 1969 lineup. With its 20mm lug width and 12.0mm profile, it sits comfortably on most wrists. [seikata-wm-a6e342fe5993]

Also known as: Helmet, Bellmatic

Specifications

Movement

Solar

Case Material

PVD Black

Case Width

40mm

Case Thickness

12.0mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

60m

Dial Color

Burgundy

Jewels

24j

Frequency

21,600 bph

Power Reserve

40 hours

Year

1969

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