Seiko Cal. 6311 - 657

The 6311-657 is a sought-after Solar piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 100m of water resistance. [seikata-wm-abb9a7576ffb]

Also known as: Rally

Specifications

Movement

Solar

Case Material

Titanium

Case Width

45mm

Case Thickness

11.9mm

Lug Width

19mm

Crystal

Hardlex

Bezel

Bidirectional

Water Resistance

100m

Dial Color

Blue Sunburst

Jewels

35j

Frequency

21,600 bph

Power Reserve

46 hours

Year

1980

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