Seiko Cal. 6357 - 343

The 6357-343 is a sought-after Spring Drive piece from Seiko's golden era. The Bidirectional bezel and 46mm case give it a distinctive presence on the wrist. [seikata-wm-cd1607be4d4b]

Also known as: Baby Tuna

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

14.2mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

150m

Dial Color

Navy

Jewels

29j

Frequency

36,000 bph

Power Reserve

37 hours

Year

1991

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