Seiko Cal. 6646 - 744

The 6646-744 is a sought-after Solar piece from Seiko's golden era. It features a Blue Sunburst dial protected by a Mineral crystal and offers 120m of water resistance. [seikata-wm-59a2280ad9a3]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

46mm

Case Thickness

14.9mm

Lug Width

20mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Blue Sunburst

Jewels

28j

Frequency

36,000 bph

Power Reserve

63 hours

Year

1992

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