Seiko Cal. 6634 - 665

The 6634-665 is a sought-after Solar piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Hardlex crystal and offers 110m of water resistance. [seikata-wm-bb626d05e0eb]

Also known as: Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

44mm

Case Thickness

13.7mm

Lug Width

20mm

Crystal

Hardlex

Bezel

Fixed

Water Resistance

110m

Dial Color

Blue Sunburst

Jewels

31j

Frequency

28,800 bph

Power Reserve

46 hours

Year

1988

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