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 Black Sea Urchin Automatic Men's Watch SNZF17K1
(3)Regular price₱8,499.00 PHP Regular priceUnit price per₱9,999.00 PHP ₱8,499.00 PHP Sale -
Seiko 5 Sports Pepsi Sea Urchin Automatic Men's Watch SNZF15K1
(16)Regular price₱7,499.00 PHP Regular priceUnit price per₱9,999.00 PHP ₱7,499.00 PHP Sold out -
Seiko 5 Sports 100M One Piece x Luffy LE Automatic Men's Watch Black x Red Dial SRPH65K1
Regular price₱18,699.00 PHP Regular priceUnit price per₱22,000.00 PHP ₱18,699.00 PHP Sold out -
Seiko 5 Sports 100M Naruto Uzumaki LE Automatic Men's Watch Orange Dial Nylon Strap SRPF70K1
Regular price₱15,999.00 PHP Regular priceUnit price per₱23,500.00 PHP ₱15,999.00 PHP Sold out -
Seiko 5 Sports Bottle Cap 100M Blue Dial Blue Bezel Men's Watch SRPC63K1
(1)Regular price₱8,649.00 PHP Regular priceUnit price per₱8,649.00 PHP -
Seiko 5 Sports 100M Automatic Men's Watch Blue Hands Index Stealth All BLACK Nylon Strap SRPD81K1
Regular price₱13,999.00 PHP Regular priceUnit price per₱14,510.00 PHP ₱13,999.00 PHP Sold out -
Seiko 5 Sports FC Barcelona 100M Blue Dial Men's Watch Nylon Strap SRP303K1
Regular price₱6,799.00 PHP Regular priceUnit price per₱6,799.00 PHP -
Seiko 5 Sports 100M LE Queen's Brian May Red Special II Men's Watch Nylon Strap SRPH80K1
Regular price₱27,999.00 PHP Regular priceUnit price per₱30,000.00 PHP ₱27,999.00 PHP Sale -
Seiko 5 Sports 100M Automatic Men's Watch Rhodium Grey Dial SRPE51K1
(1)Regular price₱10,889.00 PHP Regular priceUnit price per₱13,780.00 PHP ₱10,889.00 PHP Sale -
Seiko 5 Sports 100M Automatic Grey Doomsday Bezel Dial Men's Black Leather Strap Watch SRPE79K1
Regular price₱16,629.00 PHP Regular priceUnit price per₱20,140.00 PHP ₱16,629.00 PHP Sale -
Seiko 5 Sports 100M Automatic Men's Watch Blue Bezel Dial SRPD51K1
(1)Regular price₱12,239.00 PHP Regular priceUnit price per₱12,740.00 PHP ₱12,239.00 PHP Sold out -
Seiko 5 Sports 100M Automatic Men's Watch Pepsi Bezel Blue Dial SRPD53K1
(1)Regular price₱12,239.00 PHP Regular priceUnit price per₱12,740.00 PHP ₱12,239.00 PHP Sold out -
Seiko 5 Sports Japan Made 100M Automatic Men's Watch Silver Dial SRPB87J1
Regular price₱10,819.00 PHP Regular priceUnit price per₱10,819.00 PHP -
Seiko 5 Sports 100M Men's Yellow Dial Black PVD Stainless Strap Watch SRP159K1
(2)Regular price₱9,999.00 PHP Regular priceUnit price per₱14,999.00 PHP ₱9,999.00 PHP Sale -
Seiko 5 Sports 100M One Piece x Trafalgar Law LE Automatic Men's Watch White Dial Rubber SRPH63K1
Regular price₱17,599.00 PHP Regular priceUnit price per₱22,000.00 PHP ₱17,599.00 PHP Sold out -
Seiko 5 Sports 100M One Piece x Sanji LE Automatic Men's Watch Grey Dial Rubber SRPH69K1
Regular price₱17,599.00 PHP Regular priceUnit price per₱22,000.00 PHP ₱17,599.00 PHP Sold out