Seiko Cal. 3861 - 311

Released in 1989, the Cal. 3861 with design code 311 was part of Seiko's domestic market collection. It features a Black dial protected by a Sapphire crystal and offers 160m of water resistance. [seikata-wm-52cf38492323]

Also known as: Bullhead

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

9.3mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

160m

Dial Color

Black

Jewels

18j

Frequency

36,000 bph

Power Reserve

62 hours

Year

1989

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