This Diver 1964 2nd edition is based on the Calendar Auto Orient, one of the company's first divers' watches released in 1964. The Calendar Auto Orient featured simple dot indices on a mirror black finished dial, hands designed for excellent visibility, a rotating bezel incorporating an anodized aluminum ring, and sharply defined lugs. While the new Diver 1964 2nd edition reflects the designs inherited from the original model, a screw case-back, a dual curved sapphire crystal with anti-reflective coating, and water resistance to 200 metres compliant with the ISO 6425 standard for air diving watches. It also features the in-house 46-F6 series caliber F6N47 automatic movement, which provides high accuracy and a power reserve of over 50 hours. This green version is a matte green dial with a matching matte green bezel surface. The green gradation on the dial is inspired by the Ryusendo Cave in Iwate Prefecture, Japan, thought by some to be the most beautiful and mysterious limestone cavern in the world. This model reflects the spirit of the divers who dive deep into the underground lakes to survey the cave and unlock its mysteries. The case is made of high-quality stainless steel (SUS316L) and its relatively compact 41mm diameter makes it ideal for everyday use. The five-piece link metal strap is made of the same SUS316L stainless steel, providing an unmistakable presence on the wrist as well as a comfortable fit. A divers' extension structure and the trifold deployment buckle with push button and security latch are included, making the watch practical to use when playing sports or walking around town. The pyramid-like ridges of the additional silicone strap echo the design of the metal band of the original Calendar Auto Orient, providing a different look to enjoy.

* The original 1964 models do not meet current ISO standards as there were no clear standards for divers' watches at the time.

Specifications

• Movement: Mechanical
• Caliber Code: F6N47
• Average Accuracy: +25 seconds ~ -15 seconds per day (Static Accuracy)
• Power Reserve: 50 hours
• Case Material: Stainless Steel (SUS316L)
• Glass Material: Sapphire Crystal Glass (AR Coating)
• Glass Material Caseback: -
• Luminous Light: Yes
• Strap Material: Stainless Steel (SUS316L)
• Strap Color: Silver
• Strap Width: 20mm
• Clasp Type: Pusher 3-Folded with Double-Lock
• Weight: 175g
• Case Size 12H-6H: 49.6mm
• Case Size 3H-9H: 41.0mm
• Thickness: 14.5mm
• Water Resistance: Air Diver's 200m
• Magnetic Resistance: 4,800 A/m
• Other Features: Automatic with Hand Winding, Second Hand Halt Mechanism, Power Reserve Indicator, Uni-Directional Rotating Bezel, 22 Jewels, Additional Silicone Strap
• Guarantee: 2 years