Seiko Cal. 5256 - 360

The 5256-360 is a sought-after Spring Drive piece from Seiko's golden era. Powered by the 5256 caliber with 18j jewels beating at 28,800 bph, it delivers a 61 hours power reserve. [seikata-wm-88f853953bf7]

Also known as: Sumo

Specifications

Movement

Spring Drive

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

11.2mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Rotating

Water Resistance

160m

Dial Color

Cream

Jewels

18j

Frequency

28,800 bph

Power Reserve

61 hours

Year

1967

Related Models

• Seiko 7191-366
• Seiko 6183-819
• Seiko 3849-888
• Seiko 6250-524
• Seiko 7048-414
• Seiko 4468-429
• Seiko 6683-285
• Seiko 5621-160
• Seiko 4469-176
• Seiko 6117-201
• Seiko 3887-950
• Seiko 6222-627