■Brand: SEIKO (overseas exclusive model) ■Japanese quartz (battery operated) ■Regarding battery replacement and belt adjustment: This model can be found at the watch department of a mass retailer or your local watch store. ■Waterproof: Waterproof for daily life (10 ATM) ■Function Chronograph (1/20 second, 60 second, 12 hour meter) Small seconds Date display (calendar) Screw back Average monthly difference ±15 seconds Luminous (hands, indexes) ■Case size (H x W x D): Approx. 38 x 38 x 10 mm ■Arm circumference (approx.): Maximum 19 cm ■Brand exclusive BOX, Japanese manual, warranty ■Warranty period: 1 year Waterproof Wristwatch Pair watch Unisex Same size For myself Buy 2 Couple Parent and child Son Daughter Couple  sp;Present Seiko Date Calendar included Green Navy Safe Warranty Japanese instruction manual included SND377pSND379p ★★★This product is a pair of 2 watches. ★★★ We are giving away a pair of watch boxes (rings can also be stored)! *Please note: The number of bonus storage boxes is limited. It may be out of stock depending on the season. *Please note that only the pair watch box is not available as a gift. Each watch can be gifted. -------------------------------------------------- -------------------- This is a pair of unisex models that can be shared and used. [Set of 2 watches of the same size] Can be used by the whole family, including friends, couples, couples, brothers, sisters, parents, etc. You can also buy a set of 2 for yourself! ★This product is covered by Seiko domestic warranty and comes with a Japanese instruction manual. A simple and stylish Seiko watch that can be used without worrying about age or fashion. It is a versatile model that has the necessary functions such as a stopwatch and date calendar, and is waterproof to 10 ATM, so you don't have to worry about sweat or rain. It is safe for mothers who often work with water, such as commuting to work, school, the workplace, exercising, studying, etc. When worn by a man, the size is 38mm, which is slightly smaller than a big case, so it fits comfortably on the wrist. Recommended for those who don't like big watches or are looking for a small size that won't get in the way of cuffs! Boys size is a little larger for women. A cute item that can also be used as an accent to your outfit.   A pair watch that adults can enjoy. Items that can be used on a daily basis are also recommended as gifts!