Seiko Cal. 6343 - 428

The 6343-428 is a sought-after Solar piece from Seiko's golden era. With its 21mm lug width and 9.0mm profile, it sits comfortably on most wrists. [seikata-wm-43ed6bf4126e]

Also known as: Sumo

Specifications

Movement

Solar

Case Material

Hardlex-Coated Steel

Case Width

35mm

Case Thickness

9.0mm

Lug Width

21mm

Crystal

Sapphire

Bezel

Fixed

Water Resistance

120m

Dial Color

Silver

Jewels

21j

Frequency

28,800 bph

Power Reserve

53 hours

Year

1975

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