Seiko Cal. 6321 - 710

This Hand-Winding model from 1975 features a 41mm Hardlex-Coated Steel case. It features a Champagne dial protected by a Sapphire crystal and offers 100m of water resistance. [seikata-wm-c7a8f34ae8e2]

Also known as: Tuna, Navigator

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

9.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Champagne

Jewels

29j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1975

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