Seiko Cal. 6649 - 540

This Solar model from 1975 features a 40mm Two-Tone case. The Coin-Edge bezel and 40mm case give it a distinctive presence on the wrist. [seikata-wm-8f73767690b5]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

40mm

Case Thickness

13.8mm

Lug Width

20mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

110m

Dial Color

Burgundy

Jewels

32j

Frequency

21,600 bph

Power Reserve

64 hours

Year

1975

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