Seiko Cal. 6687 - 444

This Automatic model from 1971 features a 44mm Hardlex-Coated Steel case. It features a Silver dial protected by a Sapphire crystal and offers 30m of water resistance. [seikata-wm-eb9cd25389c9]

Also known as: Crown, Golden Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

12.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Silver

Jewels

26j

Frequency

28,800 bph

Power Reserve

63 hours

Year

1971

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