Seiko Cal. 6311 - 138

The 6311-138 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Burgundy dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-3d78b3163314]

Also known as: UFO

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

36mm

Case Thickness

10.5mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Burgundy

Jewels

28j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1971

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