Seiko Launches Limited-Edition Open-Heart Watches with 4R38 Caliber

Key Takeaways

1. Seiko Japan will launch two limited edition mechanical watches, SCVE065 and SSDE025, in Spring 2026.
2. Both models feature a unique “open heart” dial design with a light blue color and stainless steel cases and bracelets.
3. The watches use the Seiko Caliber 4R38 automatic movement, with a power reserve of about 41 hours and visible through a clear case back.
4. The SCVE065 model is larger (42 mm) with a production limit of 1,000 units, while the SSDE025 is smaller (34.2 mm) with a limit of 400 units.
5. Both watches have water resistance up to 10 bar (100 meters).


As reported by @plus9time on Instagram, Seiko Japan is set to launch two new limited edition mechanical watches aimed at the domestic market in Spring 2026. These timepieces are identified as SCVE065 and SSDE025, and they are immediately noticeable due to their unique “open heart” dial design. This design features an opening at the 9 o’clock mark that showcases the balance wheel of the watch’s internal mechanisms. Both models sport a light blue dial color. The cases are made from stainless steel and each comes with a matching stainless steel bracelet.

Movement Details

The heart of these watches is the Seiko Caliber 4R38, an automatic movement that allows for manual winding and has a hacking feature. It operates at a frequency of 21,600 vibrations per hour, contains 24 jewels, and offers a power reserve of about 41 hours. Enthusiasts will appreciate that the movement can be seen through a clear case back, which also displays “Limited Edition” along with a unique serial number.

Size Differences

The primary distinction between the two models lies in their size. The SCVE065 is the larger option, boasting a case diameter of 42 mm, a thickness of 11.6 mm, and a lug-to-lug measurement of 51.5 mm. Only 1,000 units of this model will be produced. On the other hand, the SSDE025 is a more compact version, with a case diameter of just 34.2 mm, a thickness of 10.8 mm, and a lug-to-lug length of 41.4 mm. This model has an even more limited production run of 400 units. Both watches are designed to withstand water resistance up to 10 bar (100 meters).

Source:
Link


 

Comments

Leave a Reply

Your email address will not be published. Required fields are marked *