Seiko Cal. 6681 - 710

The Seiko 6681-710 represents an important milestone in Seiko's 1992 lineup. It features a Black dial protected by a Acrylic crystal and offers 60m of water resistance. [seikata-wm-4fce893f78b8]

Also known as: Helmet, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

15.3mm

Lug Width

21mm

Crystal

Acrylic

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Black

Jewels

17j

Frequency

36,000 bph

Power Reserve

69 hours

Year

1992

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