Seiko Films was a Philippine film production company owned and run by Robbie Tan. It is known for its erotic films (colloquially known as "bold movies") of the late 1990s. Seiko Films was known for its tagline "If it's from Seiko, it must be good" used from 1989 to 1994.^[1][2] The company is not affiliated with the Japanese company sharing the same name.

Seiko Films was founded in 1981 by Robbie Tan. Its initial offering was Panlaban: Dos por Dos, starring Rex Lapid and Bomber Moran and written and directed by Mike Relon Makiling.^[3] Since then, after the People Power Revolution, Seiko Films immediately became one of the major film production studios in the late 80s, alongside Monteverde's Regal Films and Vic Del Rosario's Viva Films. The film production is home to its homegrown stars, mostly Regal babies like Romnick Sarmenta, Sheryl Cruz, Rey "PJ" Abellana and Gretchen Barretto as well as talents inside Seiko like Jestoni Alarcon, Ian Veneracion, John Regala, Cesar Montano and Rita Avila. Among its most memorable productions during its early years are The Life Story of Julie Vega and Blusang Itim, as well as horror flicks Huwag Mong Buhayin ang Bangkay, and Hiwaga sa Balete Drive.^[4][5]

Robbie Tan explained that his decision-making process when it comes to greenlighting film projects is primarily based on what is popular among audiences.^[6]

In 1989, Seiko increased its production in action films, by the time the genre was on the rise. Among its notable action movies produced were Ang Lihim ng Golden Buddha and Alyas Baby Face, as well as biographical films Ako ang Batas: General Karingal, Canary Brothers and Lt. Col. Alejandro Yanquling, and DZRH-based dramas Kunin Mo ang Ulo ni Ismael, Kasalanan ang Buhayin Ka and Lumaban Ka, Itay. A majority of the films produced throughout the 1990s are focused on this genre.

Sex trip (ST) was among Seiko's primary focus. It was in 1995 when it increased its production in ST films, with Rosanna Roces, Priscilla Almeda, Natasha Ledesma, Leandro Baldemor and Gardo Versoza in its stable of talents. Seiko made Rosanna Roces a popular sex symbol. This would be Seiko's focus starting in 2000.^{[citation needed]}

In 2003, Seiko released the Liberated series, directed by Mac Alejandre, which became among the most important films in the history of Seiko. Seiko produced movies later like Bridal Shower (2003), the mockumentary Bikini Open (2005), the family comedy I Wanna Be Happy (2006) and the psycho-erotic thriller Silip (2007). Seiko Films also co-produced the award-winning Foster Child (2007) by director Brilliante Mendoza.

In 2007, Seiko was reportedly suspended by the Movie and Television Review and Classification Board (MTRCB) due to the prominence of the production of erotic films. It was later revealed that it closed down due to intense competition with major film outlets. Since then, Tan shifted his focus on his wallet business.^[3]

ABS-CBN currently owns the rights to Seiko Films' library.^[7][8]

This is a list of some films produced by Seiko that were remade into television series:

• Sineserye Presents: Natutulog Ba ang Diyos? (ABS-CBN, 2007)
• Magkano Ang Iyong Dangal? (ABS-CBN, 2010)
• Blusang Itim (GMA Network, 2011)
• Kokak (GMA Network, 2011)
• Mundo Man ay Magunaw (ABS-CBN, 2012)
• Lumuhod Ka Sa Lupa (TV5, 2024)