Seiko Men's 5 Automatic 21 Jewel Watch
The SNK381K1 is a mechanical wristwatch that impresses with its classic design and functional features. Aimed at adults, it offers an elegant combination of stainless steel and a stylish black dial. With a diameter of 37 mm and a case thickness of 11 mm, it is both robust and comfortable to wear. The watch has an automatic function that ensures precise timekeeping and a date display that provides additional functionality. The silver-grey stainless steel bracelet with a width of 20 mm and a length of 19 cm ensures a secure fit on the wrist and is equipped with a practical folding clasp. The water resistance of up to 30 metres also makes it a reliable everyday companion. Robust stainless steel bracelet with folding clasp for a secure fit.
The SNK381K1 is a mechanical wristwatch that impresses with its classic design and functional features. Aimed at adults, it offers an elegant combination of stainless steel and a stylish black dial. With a diameter of 37 mm and a case thickness of 11 mm, it is both robust and comfortable to wear. The watch has an automatic function that ensures precise timekeeping and a date display that provides additional functionality. The silver-grey stainless steel bracelet with a width of 20 mm and a length of 19 cm ensures a secure fit on the wrist and is equipped with a practical folding clasp. The water resistance of up to 30 metres also makes it a reliable everyday companion. Robust stainless steel bracelet with folding clasp for a secure fit.
The SNK381K1 is a mechanical wristwatch that impresses with its classic design and functional features. Aimed at adults, it offers an elegant combination of stainless steel and a stylish black dial. With a diameter of 37 mm and a case thickness of 11 mm, it is both robust and comfortable to wear. The watch has an automatic function that ensures precise timekeeping and a date display that provides additional functionality. The silver-grey stainless steel bracelet with a width of 20 mm and a length of 19 cm ensures a secure fit on the wrist and is equipped with a practical folding clasp. The water resistance of up to 30 metres also makes it a reliable everyday companion. Robust stainless steel bracelet with folding clasp for a secure fit.
The SNK381K1 is a mechanical wristwatch that impresses with its classic design and functional features. Aimed at adults, it offers an elegant combination of stainless steel and a stylish black dial. With a diameter of 37 mm and a case thickness of 11 mm, it is both robust and comfortable to wear. The watch has an automatic function that ensures precise timekeeping and a date display that provides additional functionality. The silver-grey stainless steel bracelet with a width of 20 mm and a length of 19 cm ensures a secure fit on the wrist and is equipped with a practical folding clasp. The water resistance of up to 30 metres also makes it a reliable everyday companion. Robust stainless steel bracelet with folding clasp for a secure fit.
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The lowest price for Seiko Men's 5 Automatic 21 Jewel Watch right now is $158.00 at DownUnderWatches.com, compared across 20 retailers.
The all-time low was $158.00 on 24 May 2026. That's the lowest price we've ever tracked — a great time to buy.
Prices last updated 2 Nov 2026.
Last updated at 02/11/2026 19:01:44
Seiko Men's SNK381K Stainless Steel Analog with Black Dial Watch
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Refurbished Seiko 5 Stainless Steel Black Dial Automatic SNK381 SNK381K1 SNK381K Men's Watch
30-day returns
Seiko SNK381K1
Free delivery
Seiko 5 Snk381k1 Automatic 21 Jewels Black Dial Arabic Numeral Men’s
Delivery $11
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Seiko 5 Mechanical SNK381K1 SNK381 SNK381K Black Analog Watch
Free delivery
Seiko 5 Men's Automatic Watch SNK381K1 Black
Delivery $43.59
Seiko 5 Automatic 21 Jewel SNK381 SNK381K1 SNK381K Men's Watch
14-day returns
Seiko 5 Automatic 21 Jewel SNK381 SNK381K1 SNK381K Men's Watch
14-day returns
Seiko 5 Automatic 21 Jewel SNK381 SNK381K1 SNK381K Men's Watch
Free delivery
Seiko 5 Automatic 21 Jewel SNK381 SNK381K1 SNK381K Men's Watch
Free delivery between Wed – Thu
| Water Resistance | 30 meters / 100 feet |
| Waterproof | No (must keep it out of the swimming pool and shower) |
| Scratch Resistance | Scratch resistant hardlex |
| Case Material | Stainless Steel |
| Display Type | Analog |
Seiko Men's SNK381K Stainless Steel Analog with Black Dial Watch
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Refurbished Seiko 5 Stainless Steel Black Dial Automatic SNK381 SNK381K1 SNK381K Men's Watch
30-day returns
Seiko SNK381K1
Free delivery
Seiko 5 Snk381k1 Automatic 21 Jewels Black Dial Arabic Numeral Men’s
Delivery $11
Affiliate Disclosure: We may receive a small commission for purchases made through this link at no extra cost to you. This helps support our site. Thank you!
Seiko 5 Mechanical SNK381K1 SNK381 SNK381K Black Analog Watch
Free delivery
| Water Resistance | 30 meters / 100 feet |
| Waterproof | No (must keep it out of the swimming pool and shower) |
| Scratch Resistance | Scratch resistant hardlex |
| Case Material | Stainless Steel |
| Display Type | Analog |
