Original Rolex Datejust watch Stored watch in factory condition Model 1551 Year of production 1981 Size 34 mm Two-tone Acrylic plastic glass Full bracelet Caliber 3035 The best caliber in terms of power reserve, shock resistance, fewer malfunctions, and ease of maintenance, therefore it was adopted for modern Datejust watches Attachments Its original wooden box Brand: Rolex Features: Water Resistant Material: Stainless Steel Movement Type: Automatic Watch Size: 34mm