Seiko Cal. 6357 - 746

The 6357-746 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 6357 caliber with 32j jewels beating at 21,600 bph, it delivers a 56 hours power reserve. [seikata-wm-30e0c76c8479]

Also known as: Tuna, World Timer

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

36mm

Case Thickness

11.7mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Burgundy

Jewels

32j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1971

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