Seiko Cal. 6311 - 539

The Seiko 6311-539 represents an important milestone in Seiko's 1997 lineup. Powered by the 6311 caliber with 22j jewels beating at 28,800 bph, it delivers a 44 hours power reserve. [seikata-wm-3ee1a3d13864]

Also known as: Tuna

Specifications

Movement

Hand-Winding

Case Material

Titanium

Case Width

36mm

Case Thickness

11.5mm

Lug Width

20mm

Crystal

Mineral

Bezel

Fixed

Water Resistance

60m

Dial Color

Burgundy

Jewels

22j

Frequency

28,800 bph

Power Reserve

44 hours

Year

1997

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