Seiko Cal. 6270 - 311

The Seiko 6270-311 represents an important milestone in Seiko's 1978 lineup. Powered by the 6270 caliber with 20j jewels beating at 21,600 bph, it delivers a 62 hours power reserve. [seikata-wm-80dfb61c813f]

Also known as: Helmet, Arnie

Specifications

Movement

Automatic

Case Material

PVD Black

Case Width

40mm

Case Thickness

8.8mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

200m

Dial Color

Navy

Jewels

20j

Frequency

21,600 bph

Power Reserve

62 hours

Year

1978

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