AILANG 8308 Automatic Open-Heart Watch — Complete Calendar, 40mm, Steel or Leather

AILANG 8308 Automatic Open-Heart Watch — Complete Calendar, 40mm, Steel or Leather

The AILANG 8308 is a 40mm automatic open-heart dress watch with a complete calendar — large date display, week (day-of-week) indicator and calendar sub-dials alongside the open-heart balance wheel aperture. Layered textured dial, luminous hands and markers, 13mm stainless steel case, Hardlex crystal and 30m water resistance. Available in ten configurations across steel bracelet and leather strap options.

Key Specifications

Variants — Ten Configurations

Steel Bracelet

Silver rose blue / Silver white / Silver blue / Silver rose white / Black blue — five steel bracelet combinations across silver, rose gold and black case hardware with white, blue and matching colour dials.

Leather Strap

Leather silver white / Leather silver blue / Leather rose white / Leather rose blue / Leather black blue — the same five colour combinations on genuine leather strap. The leather versions create a more formal, dress-watch character compared to the bracelet configurations.

Open-Heart Balance Wheel Display

The open-heart aperture at the lower portion of the dial reveals the balance wheel — the oscillating regulating organ swinging at the movement’s beat rate, visible from the front of the watch. The balance wheel and its visible oscillation create a constantly moving element on the dial face, distinct from the static sub-dials.

This is the same display principle used across the AILANG range — the 8822 Double Pendulum and 8616 Skeleton use related visible movement architectures. The 8308 is the complete calendar variant in the range.

Complete Calendar Display

The AILANG 8308 provides more calendar information than most watches at this price tier:

Large date display: A prominent date window showing the current date (1–31) in a large aperture — prioritising date legibility over decorative dial space.

Week display: A day-of-week indicator showing the current day — Monday through Sunday. Combined with the date, this provides the full calendar reference needed for daily business and schedule management without checking a phone.

The combination of date and day simultaneously on an automatic open-heart watch at this price is the practical value proposition of the 8308 over simpler open-heart watches that show only the time.

Hardlex Crystal

Hardlex is Seiko’s branded high-strength mineral glass formulation — harder than standard mineral glass and more impact-resistant, but below sapphire hardness. The 8308 uses Hardlex rather than sapphire. For buyers who specifically need sapphire scratch resistance, the step-up options in the AILANG range or the Carnival 8026G open-heart use sapphire crystal at higher prices.

22mm Lug Width

The AILANG 8308 uses 22mm lugs — non-standard. Most watches in this batch use 20mm. At 22mm the watch fits standard 22mm straps but the aftermarket selection is narrower than 20mm. Buyers planning to swap to a leather, NATO or rubber strap should confirm 22mm availability before purchasing.

Who Is the AILANG 8308 For?

The 8308 is built for:

• Complete calendar open-heart buyers who want both date and day-of-week display alongside the visible balance wheel — this combination at this price is unusual
• Steel bracelet and leather strap flexibility buyers who want both options available in the same model
• Rose gold hardware buyers who want the warm rose tone on an open-heart calendar watch
• Black blue configuration buyers who want the dark case with blue dial accent combination

How It Compares

vs. AILANG 8822 Double Pendulum — The most-viewed AILANG page at 555 impressions. The 8822 uses a double pendulum display mechanism. The 8308 is the complete calendar variant. Compare both for the specific dial architecture you prefer.

vs. Carnival 8880G Open-Heart Triple Calendar — The Carnival uses Miyota 8215 with triple calendar (month, date, day) and open-heart display at 42mm with sapphire crystal. A more specified alternative at a higher price with a named movement.

vs. Carnival 8026G Open-Heart — The Carnival uses Miyota 8215 at 8mm slim with sapphire. The AILANG 8308 is 13mm with complete calendar — choose by complication priority (slim vs calendar).

vs. OLEVS 9910 Open-Heart — Both entry-level open-heart automatics with calendar display and mineral glass. The AILANG 8308 adds week display and has 22mm lug width vs OLEVS’s 20mm.

More from Jewelry Addicts

• AILANG Watches — Full Collection — all AILANG models
• AILANG 8822 Double Pendulum — most popular AILANG model
• AILANG 8616 Skeleton — skeleton alternative
• Carnival 8880G Triple Calendar Open-Heart — step-up with sapphire and named movement
• Best Automatic Watches Under $200 — full roundup