Seiko Cal. 6356 - 306

The 6356-306 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-eb0411aa70f8]

Also known as: Helmet

Specifications

Movement

Spring Drive

Case Material

Hardlex-Coated Steel

Case Width

46mm

Case Thickness

12.6mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

180m

Dial Color

Black

Jewels

32j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1975

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