Seiko Presage x Automatic ft. Cocktail Time aka Martini Men Formal Round 50m Water Resistant Watch SRPG23J1 SRPG23 SRPG-23 SRPG-23J1 Experience cocktail-inspired elegance with the Seiko Presage Martini SRPG23J1 - featuring a sophisticated dial, 4R35 automatic movement (41h power reserve), and exhibition case back. The 40.5mm stainless steel case with deployment clasp offers refined style, while 50m water resistance ensures everyday versatility. A toast to Japanese craftsmanship. Caliber Number / Movement 4R35 (automatic with manual winding capacity) Power Reserve / Accuracy Approximately 41 hours (+45 to -35 seconds per day) Crystal Hardlex crystal (curved) Luminous Nil Case / Band Material Stainless steel case with stainless steel band (deployment clasp with push-button release) Water Resistance 50m / 5 bar Case Size Thickness: 11.8 mm Diameter: 40.5 mm Length: 47.5 mm Lug width: 20.0 mm Other Specifications Seiko Presage x Automatic ft. Cocktail Time aka Martini Made in Japan See-through case back Screw case back 23 jewels Date display Stop second hand function (hacking mechanism) Regular timekeeping (analog display)