Seiko 5 Sports SSK025 – GMT Automatic (39mm, Leather Strap)
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The Seiko 5 Sports SSK025 combines the practicality of a GMT function with a refined, everyday style. Featuring a 39mm stainless steel case with hard coating and a black genuine leather strap, it offers a more casual yet versatile alternative to its stainless steel bracelet siblings. Powered by the reliable Caliber 4R34 automatic movement, this timepiece delivers dual-time functionality, durability, and a lightweight feel for comfortable daily wear.
Key Features
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Caliber 4R34 – Automatic with manual winding
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Power Reserve: ~41 hours
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Jewels: 24
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Functions:
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GMT hand for dual-time display
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Stop second hand function
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Date display
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Water Resistance: 100m (10 bar)
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Magnetic Resistance: 4,800 A/m
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Warranty: 3 years
Case & Build
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Case Material: Stainless steel with hard coating
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Case Size: 39.4 mm diameter × 13.6 mm thickness
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Lug-to-lug: 47.9 mm
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Lug Width: 20 mm
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Case Back: See-through & screw case back
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Weight: 79 g (lightweight compared to bracelet models)
Dial & Visibility
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Dial Color: Black
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Crystal: Curved Hardlex
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LumiBrite on hands and indices for excellent legibility in low light
Strap & Clasp
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Band: Genuine cow leather
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Clasp: Traditional buckle closure
Durability
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Hard coating on stainless steel case for scratch resistance
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Lightweight leather strap for all-day comfort
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100m water resistance + magnetic resistance ensures reliability in daily use
⚡ In short: The Seiko 5 Sports SSK025 GMT Automatic is the perfect choice for those who want Seiko’s GMT functionality in a smaller, lighter, and more casual leather-strap package, without compromising durability or performance.