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 LE Queen's Brian May Automatic Men's Watch Red Dial Nylon Strap SRPE83K1
(2)Regular price₱27,999.00 PHP Regular priceUnit price per₱49,999.00 PHP ₱27,999.00 PHP Sold out -
Seiko 5 Classic Silver Dial Couple's Stainless Steel Watch Set SNKL51K1+SYMK23K1
(3)Regular price₱8,899.00 PHP Regular priceUnit price per₱16,276.00 PHP ₱8,899.00 PHP Sold out -
Seiko 5 Classic Silver Dial Couple's Stainless Steel Watch Set SNK601K1+SYMC07K1
(1)Regular price₱8,899.00 PHP Regular priceUnit price per₱16,276.00 PHP ₱8,899.00 PHP Sold out -
Seiko 5 Sports Military 100M Automatic Men's Watch Creme Tan Canvas Nylon Strap SRP635K1
Regular price₱5,299.00 PHP Regular priceUnit price per₱5,299.00 PHP Sold out -
Seiko 5 Sports Military 100M Automatic Men's Watch Creme Tan Canvas Nylon Strap SNZG07K1
Regular price₱5,299.00 PHP Regular priceUnit price per₱5,299.00 PHP Sold out -
Seiko 5 Classic Men's Size Silver Dial 2 Tone Gold Plated Stainless Steel Strap Watch SNKL36K1
Regular price₱4,999.00 PHP Regular priceUnit price per₱8,138.00 PHP ₱4,999.00 PHP Sale -
Seiko 5 Classic Ladies Size White Dial 2 Tone Gold Plated Stainless Steel Strap Watch SYMK19K1
Regular price₱4,999.00 PHP Regular priceUnit price per₱8,138.00 PHP ₱4,999.00 PHP Sold out -
Seiko 5 Classic Ladies Size Gold Dial Gold Plated Stainless Steel Strap Watch SYME02K1
Regular price₱6,419.00 PHP Regular priceUnit price per₱8,138.00 PHP ₱6,419.00 PHP Sale -
Seiko 5 Classic Ladies Size Gold Dial Gold Plated Stainless Steel Strap Watch SYMC18K1
(1)Regular price₱6,419.00 PHP Regular priceUnit price per₱8,138.00 PHP ₱6,419.00 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 Stealth All Black Bezel Dial Ion Plated SRPD65K1
(2)Regular price₱15,199.00 PHP Regular priceUnit price per₱16,000.00 PHP ₱15,199.00 PHP Sold out -
Seiko 5 Sports 100M Automatic Men's Watch HULK Green Bezel Dial SRPD61K1
(1)Regular price₱12,239.00 PHP Regular priceUnit price per₱14,999.00 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 Red Carbon Fiber Dial Limited Edition Helmet Turtle Watch SRPA87K1
(2)Regular price₱7,499.00 PHP Regular priceUnit price per₱11,258.00 PHP ₱7,499.00 PHP Sold out -
Seiko 5 Sports Pro Diver's Men's Grey Dial Stainless Strap Watch SKZ259K1
Regular price₱10,999.00 PHP Regular priceUnit price per₱10,999.00 PHP Sold out -
Seiko 5 Sports Japan Made Limited Edition Green Carbon Fiber Dial Helmet Turtle Watch SRPA89J1
Regular price₱10,569.00 PHP Regular priceUnit price per₱10,569.00 PHP Sold out