Seiko Cal. 6311 - 391

The 6311-391 is a sought-after Automatic piece from Seiko's golden era. Powered by the 6311 caliber with 21j jewels beating at 36,000 bph, it delivers a 47 hours power reserve. [seikata-wm-5e1a18aec1d0]

Also known as: Panda, Crown

Specifications

Movement

Automatic

Case Material

Two-Tone

Case Width

42mm

Case Thickness

8.6mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

50m

Dial Color

Blue Sunburst

Jewels

21j

Frequency

36,000 bph

Power Reserve

47 hours

Year

1980

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