Seiko Cal. 6393 - 421

This Hand-Winding model from 1971 features a 42mm Stainless Steel case. It features a Navy dial protected by a Sapphire crystal and offers 190m of water resistance. [seikata-wm-7b281c212dfd]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Stainless Steel

Case Width

42mm

Case Thickness

10.0mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

190m

Dial Color

Navy

Jewels

35j

Frequency

28,800 bph

Power Reserve

40 hours

Year

1971

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