Seiko Rotocall SMGG17P1 Unisex 37mm Digital Alarm Chronograph Dual-Time Watch – Grey LCD, Stainless Steel Bracelet

Seiko Rotocall SMGG17P1: A Digital Chronograph Controlled by Its Bezel

The Seiko SMGG17P1 is a 37 mm stainless steel digital watch from the Rotocall revival, built around a rotating bezel that doubles as the control for the display. Instead of cycling through modes with a row of pushers, you turn the bezel to move between functions. The bezel is finished in yellow and black, the display is a grey LCD, and the whole watch sits on a silver stainless steel bracelet. Seiko presents the series as a re-issue of its iconic digital quartz watch with bezel-controlled functionality, and the SMGG17P1 is the yellow-accented version of that idea.

Design and Wrist Presence

At 37 mm across and 10.6 mm thick, the Rotocall is compact by modern digital-watch standards. The lug-to-lug distance is 43.5 mm, so it stays within the width of most wrists rather than overhanging, and the 107 g weight comes mostly from the solid-link bracelet. The case is round with a brushed stainless steel finish, and the bezel is the visual focus because of its two-colour treatment. Under our house sizing rule a case of this diameter is classed as unisex, which suits a watch that is as comfortable on a slim wrist as on a larger one.

• 37 mm round case – a size that fits both smaller and larger wrists
• Yellow and black bezel – the main colour accent on an otherwise silver and grey watch
• Screw-in case back – a sealed, sturdy construction behind the watch

The Rotating Bezel and Display

The bezel turns in both directions and acts as a rotary switch for the watch. The display is a digital LCD, and Seiko lists an internal LED light so the readout can be seen in the dark. The calendar shows the date and the day of the week, and the time can be read in a 24-hour format. Because the main controls are handled by the bezel, the case itself has a clean outline with no conventional crown, which is part of what gives the Rotocall its distinct look among digital watches.

Movement and Functions

Inside is Seiko’s A824 quartz movement. It is accurate to within about 20 seconds a month, and the battery is rated at roughly three years. The function list is generous for a watch of this size, and all of it is operated through the bezel.

• Chronograph – measures up to 100 hours in 1/100-second steps
• Alarm – a single-time alarm
• Timer – counts down up to 100 minutes in one-minute steps
• Dual time – a second time zone alongside local time
• Full auto calendar – programmed up to 31 December 2074
• Battery life warning – an alert before the battery runs out

The chronograph resolution is the headline number here. A hundredth of a second is far finer than a standard analogue stopwatch can show, so the watch works for timing laps, cooking, workouts or short tasks where a clear reading matters. The automatic calendar adjusts for month lengths and leap years, so you do not have to correct it at the end of short months.

Bracelet and Fit

The bracelet is solid-link stainless steel in silver, 20 mm wide at the lugs and tapering to 16 mm at the clasp. It closes with a three-fold deployment clasp released by push buttons, which keeps it secure on the wrist and easy to take off. The bracelet is 195 mm long and, according to the maker’s data, suits wrists of roughly 150 to 210 mm. Extra links can be removed by a watchmaker if you need a closer fit. The brushed links match the case, so the watch looks consistent from the bezel down to the clasp.

Water Resistance and Everyday Use

The SMGG17P1 is rated to 10 bar, or 100 metres. In practical terms that covers showering, swimming and snorkelling. It is not a diving instrument, and we would not recommend pressing or turning the bezel underwater. The Hardlex crystal is a hardened mineral glass that resists everyday knocks and scuffs better than ordinary glass, although it can still be marked by a hard impact. For a watch that is likely to be used for timing and daily wear, that combination of 100 metres and a tough crystal is a sensible one.

The Rotocall Line and Seiko

Seiko was founded in Tokyo in 1881 and has produced quartz and digital watches for decades. The Rotocall revival draws on the bold spirit of 1980s digital design and brings it back with a modern A824 movement. The result is a watch with retro character that still offers a modern feature set, rather than a copy of an old model. The SMGG17P1 sits alongside a sibling with a red and black bezel, and the two share the same case, bracelet and movement.

Who This Watch Suits

• Anyone who likes retro digital styling but wants current quartz accuracy
• Wearers with small to medium wrists who find most digital watches too large
• People who need a reliable chronograph, timer and alarm in a single watch
• Seiko followers looking for a distinctive bezel-controlled design
• Gift buyers after a recognisable brand with a clear point of difference

Care and Maintenance

Wipe the case and bracelet with a soft, damp cloth and dry them afterwards, especially after swimming in salt water or chlorine. Keep the bezel free of grit, because turning it with sand trapped underneath can wear the mechanism. When the battery warning appears, have the cell replaced by a watchmaker who can also check the case-back seal, so the 100 metre rating is preserved. Avoid leaving the watch on a hot dashboard or beside strong magnets, and store it away from direct sun when you are not wearing it.

Technical Specifications