1976 · Seiko
1976 Seiko 6306-7001
6306-7001 683364
- Diameter
- 43 mm
- Movement
- Automatic (Self-Winding)
- Calibre
- Seiko 6306A
- Water res.
- Waterproof up to 150 M / 490 feet
Photographs
55Shown in the order they were catalogued.
Features
Features
Date
A feature that displays the current day of the month, typically in a small window on the dial, commonly placed at the 3 o'clock or 6 o'clock position.
Automatic
A watch powered by automatic (self-winding) movement that doesn't require a battery. It winds itself using the daily usage motion of the wearer's wrist.
150 meters
Suitable for swimming, snorkeling, and light diving, but not recommended for high-impact water sports or scuba diving.
Bi-directional rotating bezel
A bezel that can rotate in both directions (clockwise and counterclockwise). It is useful for timing events, measuring elapsed time, or reading a second time zone.
Model
- Brand
- Seiko
- Series
- Turtle (6306 JDM Version)
- Catalogue Reference
- 6306-7001 683364
- Movement Type
- Automatic (Self-Winding)
- Production Year
- 1976
- Style
- Dive Watch
Case
- Diameter
- 43 mm
- Thickness
- 14 mm
- Material
- Stainless Steel
- Water Resistance
- Waterproof up to 150 M / 490 feet
- Finishing Details
- Subtle Radial Polished
- Bezel
- Bi-directional, 10-minute Graduated
- Crown Type
- Screw Down
- Crystal
- Mineral
- Caseback
- Brand decoration and details engraved
Dial
- Color
- Black
- Dial Markers
- Arrow Indeces
- Finishing Details
- None
- Luminiscent Indexes
- Hands and MarkersTritium
- Calendar
- Day/Date display at 3 o'clock position
Bracelet
- Material
- Leather
- Buckle Type
- Butterfly Deploy Clasp
- Width
- 22 mm
- Color
- Red
Movement · Seiko 6306A
- Manufacturer
- Seiko
- Model
- 6306
- Type
- Automatic (Self-Winding)
- Jewels
- 21 (Twenty-One) Jewels
- Frequency
- 21600 A/h
- Reserve
- 45 Hours
- Functions
- Day, Date, Hours, Minutes, Sweep Seconds
In-house Seiko movement produced from around 1976 until 1981. The cal. 6306 movement has 21 jewels and runs at 21,600 A/h. It hacks and has a quickset day/date calendar mechanism with a Japanese/English day wheel The 6306 divers are much rarer to find since they were Japan-only models that use a 21 jewels hackable movement (compared to the 17 jewels non-hacking movements in the 6309s). From the serial number, the watch dates to August 1976, being assembled in the first year of the model release.
