Seiko Cal. 6181 - 837

The Seiko 6181-837 represents an important milestone in Seiko's 1985 lineup. It features a Black dial protected by a Acrylic crystal and offers 90m of water resistance. [seikata-wm-5472f1f074b7]

Also known as: Helmet

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

43mm

Case Thickness

8.9mm

Lug Width

20mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

90m

Dial Color

Black

Jewels

24j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1985

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