CheckMag | Every Casio and Seiko watch unveiled in October 2025 - the busiest month in recent memory

October has been one of the busiest periods ever for Japanese timepiece leaders Casio and Seiko, with a multitude of new releases across all their key lines, packed with throwbacks, collaborations, technical upgrades, and limited editions. Here’s a full roundup arranged by collection and in the order these models made their debut or reached their key markets.

Casio Edifice

Casio’s Edifice lineup got new chronographs, advanced hybrids, and a high-profile collaboration this month. The Edifice EFB-730L-7AV debuted alongside the EFB-730D-2BV and EFB-730D-3AV, featuring a cream dial, sapphire glass, and a tan leather strap, launching at $165. The hybrid line saw the release of the metal-bezel EFV-C120P-1A2 (blue resin strap) and EFV-C120D-1A4 (bracelet), both supporting world time and multiple digital display complications, with 100m water resistance and long battery life. The ECB-2300 Sospensione series (YD-1A, YDC-1A) followed for the motorsport crowd, with solar charging, Bluetooth, rugged 120g build, and a signature double-wishbone suspension structure.

A headline collab, the Edifice x Honda ECB-2300HR-1A, celebrates 60 years since Honda’s first F1 victory. It comes with a classic racing livery alongside solar and Bluetooth tech, and is priced around $530, launching late 2025.

Casio G-Shock

The G-Shock rollouts span tech upgrades, artist collabs, and themes of conservation. Early in the month, GBD-200 series (GBD-200-1A1JF and 7JF) brought high-contrast MIP displays, Bluetooth, step-tracking, and tough resin cases on Oct 17 for ¥25,300 (~$172). G-Shock x Pleasures DW-5600UBB-1ER (Daft Punk collaboration) launched Oct 9, with visuals of the electronic music duo's logo.

Special editions followed, like the G-Shock x Corona GA-2100CR25-2A for Mexico (100th anniversary of Corona beer) in blue and white, with multi-zone alarms and gold accents. G-Shock’s Darwin Foundation GA-B2100DF (scheduled global launch late 2025) spotlights the Galápagos, with the GA-B2100DF-4A and 1A inspired by wildlife and made with eco-friendly bioplastic.

October’s later launches included the Jae Tips x G-Shock DW-6900, debuting at ComplexCon Las Vegas, and the SYNA DW-6900 collab for the UK in November - a burgundy finish and backlight logo add street cred to G-Shock’s most music-associated silhouette. G-Shock x Evangelion (GA110EVA307A) also released internationally with a bright color scheme, while the Black Tone full-metal GMW-B5000BT-1JF, GM-B2100BT-1AJF, and GMC-B2100BT-1AJF watches also showed up - with the GMW-B5000BT selling out in Japan as soon as the series dropped.

Finally, the flagship GST-B1000 (G-Steel) lineup is now official in Japan and launches in November for ¥66,000, with black, blue, and green dials, Tough Solar, and Bluetooth.

Casio Vintage (and throwbacks)

Casio’s enduring Vintage catalog got multiple new spins this season. The slim AQ-230EL-1A and leather-clad AQ-230EGL-9A hybrids rolled out for pre-order in Japan, with dual analog hands plus positive displays, priced at ¥6,600–7,700. The AQ-240 series (AQ-240E-3A, 7A, and 9A) matched with classic square cases, hybrid dials, and chrome or gold options, pricing between £54.90 (silver) and £74.90 (gold).

A new AQ-230A-1DM joined the US market for $59.95 - dual time, stopwatch and a familiar 1980s form factor. The A158WETB-1A (black chrome-plated digital) is now for sale in the States at $79.95. New mesh-strap editions for the A158WEM (3 and 7) and AQ-230EM (2A and 7A) are scheduled to arrive globally by year's end.

Casio’s value range is not left behind. The new AE-1700H digital series arrives late 2025 for ~$60, with 10-year batteries, moon data, and diver-watch-like design. The MTP-E510D (under $80) offers Edifice-like chronograph styling, 50m WR, chronograph function, and screw-down casebacks.

Rounding out the vintage-themed launches, Casio released the CA-500WEBF Back to the Future 40th Anniversary calculator watch (Oct 21 launch, £115), sporting a "OUTATIME" dial cue, colorful buttons, flux capacitor engravings, and cassette-tape packaging.

Casio Oceanus and Pro Trek

On the premium side, Oceanus debuted the limited OCW-S7000TS-1A (Manta, Tamio Okuda 60th, November 2025, only 1,000 units), with radio sync, Bluetooth, solar charging, and an engraved sapphire bezel. The titanium OCW-S7000CN-1A and OCW-SG1000CN-1A also joined with 'Edo Kiriko' sapphire bezels, DLC black finish, and advanced Gallium Tough Solar ($2,050-4,500).

Pro Trek’s PRW-B1000 (1 and -5) finally rolled out internationally, equipped with Bluetooth, Triple Sensor tech, solar power, and atomic time sync for $535 in the US.

Seiko

Seiko’s releases show the full range of their design DNA, from field watches to colorful Asia-Pacific regional editions. The new Prospex SPB539, SPB541, and SPB543 diver trio use the 6R35 movement and debut regionally across Asia and Oceania (5,500 units, nature-themed dials). The Prospex Alpinist SPB532J1 'Snow Dial' is exclusive to Southeast Asia at 800 pieces ($1,127).

Seiko’s Power Design Project Collection 1 resurrects the quirky 1984 Tissé with bead-link bracelets and quartz 4N30 movement (AUD 575-650), available in silver, black, or gold. Retro fans also get the Rotocall reissue (November 2025, est. $470), the 1980s NASA digital with three color bezel options and 100m WR.

Finally, the Prospex Alpinist SPB503, SPB505, and SPB507 returned with 6R55 movements, 72-hour power, and stainless or leather options.

With such a broad array of launches - from cross-continental collabs and throwback digitals to solar chronos and accessibility-driven mesh bracelets - October 2025 turned out to be one of the most dynamic months in the recent history of Casio and Seiko watches. Every category saw new life, with limited editions and region-specific exclusives. A lot of new models such as the Casio GW-BX5600 and GMW-BZ5000D are slated for an early November launch as well - it might be worth keeping an eye out for those as well.

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