Seiko General x Analog ft. Conceptual Couple Formal Round 100m Water Resistant Watch SUR633 SUR307 SURDiscover the perfect pair with Seiko matched timepieces. The men SUR307P1 features a 40.2mm case, while the women SUR633 offers a 29.8mm design. Both share a white dial, sapphire crystal, and 100m water resistance for a harmonious blend of elegant style and robust performance.Caliber Number / Movement6N52 / 6N22 (quartz)Battery Life / AccuracyApproximately 3 years (+/-15 seconds per month)CrystalSapphire crystalLuminousLumiBrite on hands and indexesCase / Band MaterialStainless steel case with stainless steel band (three-fold clasp with push-button release)Water Resistance100m / 10 barCase SizeThickness: 8.4 / 8.2 mmDiameter: 40.2 / 29.8 mmLength: 47.0 / 37.0 mmLug width: 20.0 / 14.0 mmOther SpecificationsSeiko General x Analog ft. ConceptualScrew case backDate displayRegular timekeeping (analog display)