Seiko Cal. 5256 - 357

The 5256-357 is a sought-after Automatic piece from Seiko's golden era. Powered by the 5256 caliber with 23j jewels beating at 36,000 bph, it delivers a 40 hours power reserve. [seikata-wm-17ea1301dcce]

Also known as: Bellmatic, Golden Tuna

Specifications

Movement

Automatic

Case Material

Titanium

Case Width

36mm

Case Thickness

10.9mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

30m

Dial Color

Burgundy

Jewels

23j

Frequency

36,000 bph

Power Reserve

40 hours

Year

1976

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