Seiko Cal. 6340 - 331

The 6340-331 is a sought-after Spring Drive piece from Seiko's golden era. It features a Silver dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-42ceb6da6f76]

Also known as: Sportsmatic, Sea Horse

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

9.7mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

60m

Dial Color

Silver

Jewels

33j

Frequency

36,000 bph

Power Reserve

49 hours

Year

1970

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