Seiko 5 Automatic 21 Jewel SNK381 SNK381K1 SNK381K Men's Watch

Seiko SNK381K1 — Seiko 5 Automatic 21 Jewels, Black Dial with Baton Indexes, Stainless Case and Bracelet, Day-Date

The Seiko SNK381K1 is a compact, composed automatic from the Seiko 5 series — a 37mm stainless steel case with a black dial, baton-style indexes, a day-date display, a 21-jewel self-winding automatic movement, and a stainless bracelet in one of the most versatile and broadly wearable configurations in the compact Seiko 5 lineup. The black dial with baton indexes is a specific and purposeful combination: dark and composed without the colour character of navy, formally monochromatic without the brightness of white, and with the kind of low-key legibility that works equally well in professional, casual, and smart-casual contexts. On the compact 37mm Seiko 5 case it creates a watch that draws no attention to itself while wearing with quiet confidence — the kind of everyday automatic that pairs with anything and is never out of place. The 21-jewel movement delivers the same proven self-winding performance as the rest of the Seiko 5 range.

Key Features

• Movement: Seiko 21-jewel automatic self-winding — no battery; powered by the wearer’s motion
• Case diameter: 37mm — compact and classically proportioned; versatile on any wrist
• Dial: Black dial with baton-style indexes — composed, monochromatic, and broadly versatile across all contexts
• Case & bracelet: Stainless steel — neutral, silver-tone, broadly versatile
• Display: Day-date — one of the five founding Seiko 5 principles
• Crown: Recessed at 4 o’clock position — classic Seiko 5 design feature
• Water resistance: 30M — splash resistant for everyday use
• Style: Monochromatic black baton-index dress-casual automatic — composed and quietly confident in the compact Seiko 5 range
• Reference: SNK381K1 / SNK381K / SNK381

At $272, the SNK381K1 is a well-priced compact everyday automatic — 37mm, black baton dial, stainless case and bracelet, 21-jewel movement, day-date. For those who want the Seiko 5 automatic brief in the most composed and context-neutral black dial configuration.

Authentic Seiko timepiece. Orders ship directly from our supplier. See our shipping policy for delivery estimates.