Seiko Cal. 6164 - 305

This Spring Drive model from 1983 features a 46mm Hardlex-Coated Steel case. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-c65eb5f0dd7a]

Also known as: Sportsmatic, Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

9.1mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

170m

Dial Color

Navy

Jewels

18j

Frequency

36,000 bph

Power Reserve

36 hours

Year

1983

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