Seiko SUP429

The Seiko reference SUP429 has a steel case measuring 25 mm across. The case has a thickness of 6.3 mm, with a lug-to-lug measurement of 35.6 mm. The movement is solar-powered calibre V115, which operates for approximately 12 months when fully charged. The dial is covered by a Hardlex crystal. The movement has an accuracy of plus or minus 15 seconds per month. The distance between the lugs measures 12 mm. The movement has an overcharge prevention function. The folding clasp has a three-fold construction and a push-button release mechanism.