Seiko Cal. 6681 - 523

This Hand-Winding model from 1992 features a 35mm Hardlex-Coated Steel case. It features a Cream dial protected by a Sapphire crystal and offers 140m of water resistance. [seikata-wm-871ff3c323c3]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

9.1mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

140m

Dial Color

Cream

Jewels

28j

Frequency

28,800 bph

Power Reserve

36 hours

Year

1992

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