
Quattro introduces the Grand Seiko references SLGW004 and SLGW005, which reimagine the iconic Hi-Beat 45GS design. The author draws a compelling parallel between the watches' austere, angular aesthetics and the cinematic style of Yasujirô Ozu, offering a unique cultural lens through which to appreciate these timepieces. A particular highlight is the intricate wagtail bird-shaped click of the new Caliber 9SA4, a detail that captivated the author.


















Caliber 9SA4 explained by Grand Seiko
Caliber 9SA4 in action
The Grand Seiko SLGW005 is a limited-edition model within the Heritage Collection, designed as a recreation of the 45GS. This reference is notable for its distinct case design and the integration of a modern high-beat manual-wind movement, distinguishing it from other contemporary Grand Seiko offerings. It represents a specific aesthetic and technical direction within the brand's historical reinterpretations, focusing on a more traditional, dress-oriented profile.
This timepiece features a stainless steel case, measuring 38mm in diameter and 10.3mm in thickness, with a box-shaped sapphire crystal. It houses the manual-wind Caliber 9SA4, which operates at a high frequency and provides a power reserve of approximately 80 hours. The movement is visible through a sapphire exhibition case back, allowing appreciation of its finishing and construction. The water resistance is rated at 30 meters.
Appealing to collectors who value historical fidelity combined with advanced horological mechanics, the SLGW005 offers a refined alternative to Grand Seiko's more sport-oriented or larger-cased models. Its limited production and use of stainless steel position it as a significant piece for enthusiasts of the brand's heritage and high-end craftsmanship. The dial color is a subtle silver, complementing the stainless steel case.
At first, when i discovered the 44GS case shape i really didn't like it. It was in my mind too "heavy", too raw. But when i had the opportunity to get one in my hands i totally changed my mind. Today i own this 45GS. I am happy that they kept some design elements from the 1968 movement
For me the design of this case instantly evokes the Japan from the 50s and 60s as I discovered it in Ozu's movies.
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