Grand Seiko recently unveiled their two newest recreational diver’s watches, SBGH289 and SBGH291. These two addendums to the Sport Collection feature Great Seiko’s Hi-Beat 36000 movement, caliber 9S85, which has 37 jewels and boasts an accuracy rating of +5 to -3 seconds per day and a power reserve of 55 hours.
Awesome Seiko’s recreational Grand Seiko diver’s watch is an essential tool putting precision, durability, and ease of use at the forefront, offering everything a diver needs while eschewing any distracting or superfluous adornment. Case in point, the dial. Delivered in blue on SBGH289 and black on SBGH291, both dials feature a clean design partnering a large handset with a claro layout. The bold, multi-faceted indexes are affixed onto the face via a swaging process that ensures their own resistance against shocks, and the hands tend to be differentiated in shape to enhance time telling even at a glance. Both dials are also matte, which creates less reflections and makes them easier to read. Plenty of LumiBrite is applied to the hands, markers, as well as bezel for nighttime visibility. There is also a small luminous pip near the date at three in compliance with ISO.
Rated to 200 feets, The case on both models measures 43. 8mm in height, 14. 7mm in thickness, and also 51mm in length from one end of the carry to the other. SBGH289 has a case and bracelet made of stainless-steel and weighs 206 grms. SBGH291 is High-Intensity Titanium, which provides notable scratch along with corrosion resistance, as well as a substantial weight reduction at 142 gr. Every component of these two watches is made to last, with easy to maintain built into the actual architecture of the case. Therefore , the case, stem pipe, crown, in addition to rotating bezel (which has a four-part design) allow for easy disassembly plus re-assembly in Grand Seiko Service Centers.
Caliber 9S85 is a sophisticated Grand Seiko Hi-Beat automatic movement running at 36, 000 bph. This modern caliber makes use of innovations in order to its mainspring, hairspring, escapement, and gear train to improve precision, longevity, and even overall reliability. Grand Seiko manufactures this movement from start to finish from Studio Shizukuishi in Iwate Prefecture, the home of Fantastic Seiko’s mechanical timepieces.