Seiko Cal. 6681 - 816

This Quartz model from 1965 features a 39mm Stainless Steel case. It features a Burgundy dial protected by a Mineral crystal and offers 100m of water resistance. [seikata-wm-994c686b7bb0]

Also known as: Monster, Sportsmatic

Specifications

Movement

Quartz

Case Material

Stainless Steel

Case Width

39mm

Case Thickness

9.2mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

100m

Dial Color

Burgundy

Jewels

18j

Frequency

21,600 bph

Power Reserve

38 hours

Year

1965

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