Seiko Cal. 6381 - 936

The Seiko 6381-936 represents an important milestone in Seiko's 1979 lineup. It features a Black dial protected by a Sapphire crystal and offers 120m of water resistance. [seikata-wm-54a13ce82806]

Also known as: Sumo, World Timer

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

46mm

Case Thickness

10.3mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Rotating

Water Resistance

120m

Dial Color

Black

Jewels

23j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1979

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