Seiko Cal. 6642 - 750

Released in 1993, the Cal. 6642 with design code 750 was part of Seiko's domestic market collection. The Coin-Edge bezel and 44mm case give it a distinctive presence on the wrist. [seikata-wm-bf764acc0e4d]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

44mm

Case Thickness

15.7mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

30m

Dial Color

Black

Jewels

30j

Frequency

21,600 bph

Power Reserve

68 hours

Year

1993

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