SEIKO Watch for Men – Day/Date Calendar & Luminous Markers,

Product Overview

The SEIKO Watch for Men delivers a balanced blend of practical functionality and timeless design, making it a dependable companion for daily wear and formal occasions. Part of the Essentials Collection, this model emphasizes core features that matter most: reliable timekeeping, clear readability, and durable construction. Built with a stainless steel case and rated for water resistance up to 100 meters, it’s designed to withstand the demands of everyday life—from morning commutes to weekend adventures. The inclusion of a day/date calendar and luminous markers enhances usability, ensuring you stay on schedule and can easily read the time in any lighting. Whether paired with a suit or casual attire, this watch offers a refined, understated presence that complements a variety of styles.

Key Features

• Day/Date Calendar Display – The dial features a convenient day/date window, allowing you to quickly check both the current day and date without needing to consult a calendar. This dual-function display helps keep your schedule organized and visible at a glance.
• Luminous Markers with LumiBrite Technology – The hour markers and hands are treated with SEIKO’s proprietary LumiBrite material, which absorbs light and glows brightly in the dark. Unlike traditional luminous paints, LumiBrite offers longer-lasting brightness and does not require exposure to UV light, making it ideal for low-light environments such as evening events, dimly lit offices, or nighttime outdoor activities.
• Stainless Steel Case – Crafted from high-grade stainless steel, the case provides excellent resistance to corrosion, scratches, and daily wear. Its polished finish maintains a clean, professional look over time, ensuring the watch remains presentable even after extended use.
• 100m Water Resistance – With a water resistance rating of 100 meters (10 bar), this watch is suitable for swimming, snorkeling, and other water-based activities. It can handle splashes, rain, and brief submersion, though it is not designed for scuba diving or high-pressure water sports.
• Precise Quartz Movement – Powered by a reliable quartz caliber (4N30), the watch delivers accurate timekeeping with minimal deviation. Quartz movement is known for its consistency and low maintenance, requiring only periodic battery replacement.
• Hardlex Crystal – The watch face is protected by a Hardlex crystal, a durable mineral glass known for its scratch resistance and clarity. While not as hard as sapphire, Hardlex offers excellent everyday protection and maintains a clean, unobstructed view of the dial.

Technical Specifications

• Model Number: SUR356
• Department: Men
• Case Material: Stainless Steel
• Water Resistance: 100 meters / 10 bar
• Movement: Quartz
• Caliber: 4N30
• Crystal: Hardlex
• Display: Day/Date
• Markers: Luminous (LumiBrite)
• Battery: 1 Nonstandard Battery (included)
• Package Dimensions: 5.04 x 3.74 x 3.5 inches
• Item Weight: 9.91 ounces
• Manufacturer: Seiko
• ASIN: B09359BWX9
• Date First Available: April 21, 2021
• Best Sellers Rank: #468,908 in Clothing, Shoes & Jewelry; #1,962 in Men’s Wrist Watches

Benefits & Use Cases

This watch is ideal for men who value reliability, clarity, and understated style. Its 100-meter water resistance makes it suitable for swimming and recreational water use, while the stainless steel construction ensures long-term durability in both urban and outdoor settings. The day/date function adds practical value for professionals and students alike, helping you stay on top of appointments and deadlines. The luminous markers enhance nighttime visibility, making it useful for evening commutes, travel, or outdoor activities after dark. The clean, minimalist dial design pairs seamlessly with business attire, casual wear, or weekend outfits, offering versatility without sacrificing sophistication. As part of SEIKO’s Essentials Collection, it represents a focus on core functionality—delivering essential features without unnecessary complexity.

Important Notes

This watch is powered by one nonstandard battery, which is included with purchase. While it is water-resistant up to 100 meters, it is not suitable for scuba diving or high-impact water sports. To maintain accuracy, avoid prolonged exposure to strong magnetic fields or extreme temperatures. For warranty details, customers should refer to the official SEIKO warranty information linked at purchase. The product was first made available on April 21, 2021, and is manufactured by SEIKO, a brand with a long-standing reputation for quality and innovation in watchmaking.