Description

The Seiko 5 Sports Field Mid-Size SBSA197 (globally distributed under the international reference SRPJ81K1) is a rugged, beautifully proportioned mechanical field watch belonging to the celebrated Seiko 5 Sports Collection. Purpose-built to honor classical military field aesthetics while answering the global demand for compact tool geometry, this specific reference downscales traditional field dimensions into an exceptionally comfortable, unisex vintage-spec footprint. The watch is engineered inside a robust 36.4 mm stainless steel case that has been treated with a full satin matte field-brushed finish to prevent harsh sun glare and hide minor abrasions during outdoor use. Measuring a versatile 12.5 mm in thickness and featuring an ultra-compact lug-to-lug span of 44.4 mm, it wraps seamlessly flush against smaller wrist profiles while projecting an authentic, historic utility stance, paired with a matching brushed three-link stainless steel bracelet. The primary visual anchor is its magnificent textured matte grain black dial, designed with a deep anti-reflective base layout to maximize high-contrast legibility in the wild. Powering this resilient mechanical engine is the trusted, in-house Calibre 4R36 automatic movement, operating at a frequency of 21,600 vibrations per hour and providing a reliable 41-hour power reserve with manual winding and stop-seconds hacking capacity. Because this specific reference code is a Japanese Domestic Market (JDM) exclusive edition, it features a specialized dual-language day-date calendar window at 3 o'clock that allows the user to display the days of the week in either English or traditional Japanese Kanji. Following historical trench-watch blueprints, the dial is split into dual concentric circles: a prominent outer 12-hour Arabic numeral ring and a smaller inner 24-hour military time track. The syringe-style hands and bold block numerals are deeply painted with high-intensity LumiBrite compound for rapid orientation in low-light environments. Complete with a screw-down exhibition see-through case back on the reverse and a highly capable 100-meter daily water resistance rating, this mid-size tactical piece delivers a definitive bridge between vintage utilitarian history and everyday modern durability.

Presentation

• Warranty: Yes per manufacturer
• Packaging: Original retail gift box

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