Seiko Cal. 3861 - 543

Released in 1986, the Cal. 3861 with design code 543 was part of Seiko's domestic market collection. With its 18mm lug width and 8.7mm profile, it sits comfortably on most wrists. [seikata-wm-de61298fd37e]

Also known as: Helmet, Rally

Specifications

Movement

Quartz

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

8.7mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

140m

Dial Color

Burgundy

Jewels

29j

Frequency

21,600 bph

Power Reserve

70 hours

Year

1986

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