When it was introduced in 1963, the Seiko Sportsmatic 5 heralded multiple innovations. The first was the Diaflex mainspring, Seiko’s unbreakable mainspring. Another was the Diashock shock-resistant design, Seiko’s answer to the Swiss Incabloc system. Yet another was overall water resistance — although in those days the words “water proof” were used (a labeling that would have the Federal Trade Commission scrambling their lawyers if it occurred today). In any case, this third attribute was less a technological innovation and more an innovative design criteria for the Seiko 5 sub-brand.So what does the “5” mean anyway? There is some disagreement. Tradition (and many an online watch forum entry) says it’s for the following five key attributes of all Seiko 5 watches:
1. The Diaflex mainspring
2. The Diashock system
3. Automatic winding
4. Day/date indication
5. Water resistance
(Some sources combine Diaflex and Diashock while separating Day and Date.)
However, Seiko’s website commemorating the 50th Anniversary states a slightly different, somewhat more general set of attributes:
1. Automatic winding
2. Day/date displayed in a single window
3. Water resistance
4. Recessed crown at the 4 o’clock position
5. Durable case and bracelet
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Seiko 5 Sports 100M Automatic Men's Stainless Mesh Strap Watch Black Bezel Vintage Beige Dial SRPE75K1
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Seiko 5 Sports 100M Automatic Men's Stainless Mesh Strap Watch Blue Bezel Dial SRPE77K1
Regular price₱13,999.00 PHP Regular priceUnit price per₱19,080.00 PHP ₱13,999.00 PHP Sale -
Seiko 5 Sports 100M Automatic Men's Patterned Black Dial Bronze Plated Case Leather Strap Watch SRPE80K1
Regular price₱16,329.00 PHP Regular priceUnit price per₱20,670.00 PHP ₱16,329.00 PHP Sale -
Seiko 5 Sports 100M Automatic Men's Watch Avocado All Green Nylon Strap SRPD77K1
Regular price₱11,999.00 PHP Regular priceUnit price per₱14,510.00 PHP ₱11,999.00 PHP Sale -
Seiko 5 Sports Japan Made 100M Coke Men's Stainless Strap Watch SRPC57J1
Regular price₱11,999.00 PHP Regular priceUnit price per₱0.00 PHP ₱11,999.00 PHP Sold out -
Seiko 5 Classic Black Dial Couple's Gold Plated Stainless Steel Watch Set SNKK22K1+SYM602K1
(3)Regular price₱11,099.00 PHP Regular priceUnit price per₱16,276.00 PHP ₱11,099.00 PHP Sale -
Seiko 5 Classic Gold+Black Dial Couple's Gold Plated Stainless Steel Watch Set SNKL28K1+SYMA06K1
(3)Regular price₱11,099.00 PHP Regular priceUnit price per₱16,276.00 PHP ₱11,099.00 PHP Sale -
Seiko 5 Classic Gold Dial Couple's Gold Plated Stainless Steel Watch Set SNKK20K1+SYM600K1
Regular price₱11,099.00 PHP Regular priceUnit price per₱16,276.00 PHP ₱11,099.00 PHP Sale -
Seiko 5 Classic Gold Dial Couple's Gold Plated Stainless Steel Watch Set SNK610K1+SYMC18K1
(3)Regular price₱11,099.00 PHP Regular priceUnit price per₱16,276.00 PHP ₱11,099.00 PHP Sale -
Seiko 5 Classic Gold Dial Couple's Gold Plated Stainless Steel Watch Set SNKL48K1+SYMK20K1
(3)Regular price₱11,099.00 PHP Regular priceUnit price per₱16,276.00 PHP ₱11,099.00 PHP Sale -
Seiko 5 Classic Gold+White Dial Couple's 2 tone Gold Plated Stainless Steel Watch Set SNK365K1+SYMA35K1
Regular price₱9,798.00 PHP Regular priceUnit price per₱16,276.00 PHP ₱9,798.00 PHP Sold out -
Seiko 5 Classic White Dial Couple's 2 tone Gold Plated Stainless Steel Watch Set SNKL24K1+SYMK44K1
Regular price₱9,798.00 PHP Regular priceUnit price per₱16,276.00 PHP ₱9,798.00 PHP Sale -
Seiko 5 Classic White Dial Couple's 2 tone Gold Plated Stainless Steel Watch Set SNK363K1+SYMA35K1
Regular price₱9,798.00 PHP Regular priceUnit price per₱16,276.00 PHP ₱9,798.00 PHP Sold out -
Seiko 5 Classic Black Dial with Red Bar Couple's Stainless Steel Watch Set SNKK31K1+SYMD95K1
Regular price₱7,998.00 PHP Regular priceUnit price per₱16,276.00 PHP ₱7,998.00 PHP Sale -
Seiko 5 Classic White Dial with Red Bar Couple's Stainless Steel Watch Set SNK369K1+SYMA41K1
Regular price₱7,998.00 PHP Regular priceUnit price per₱16,276.00 PHP ₱7,998.00 PHP Sale -
Seiko 5 Sports 100M Automatic Men's Watch Black Dial Bezel SRPD55K1
Regular price₱12,239.00 PHP Regular priceUnit price per₱12,740.00 PHP ₱12,239.00 PHP Sale