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Ships within 48 hours · Estimated delivery Sep 27 - Oct 2
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Description
Seiko Prospex Alpinist Automatic SPB377J1The new Caliber 6R54, which has a power reserve of three full days, powers the new Seiko Prospex Alpinist Mechanical GMT. High legibility The 24 hour display on the bezel and the 24 hour hand with red tip guarantee the legibility of the GMT function. Specifications Movement Caliber Number 6R54 Movement Type Automatic with manual winding Precision +25 to 15 seconds per day Power reserve Approx. 72 hours(3 days) Jewels 24 Functions 24 hour hand (dual
- The new Caliber 6R54, which has a power reserve of three full days, powers the new Seiko Prospex Alpinist Mechanical GMT.
- High legibility
- The 24-hour display on the bezel and the 24-hour hand with red tip guarantee the legibility of the GMT function.
Specifications
Movement
- Caliber Number 6R54
- Movement Type Automatic with manual winding
- Precision +25 to -15 seconds per day
- Power reserve Approx. 72 hours(3 days)
- Jewels 24
Functions
- 24-hour hand (dual time display function)
- Stop second hand function
Case/Band
- Case Material Stainless steel (super hard coating)
Case Size
- Thickness:13.6mm
- Diameter:39.5mm
- Lug-to-lug:46.4mm
- Crystal Curved sapphire crystal
- Crystal Coating Anti-reflective coating on inner surface
- LumiBrite Lumibrite on hands and index(es)
- Band Material Cow Steer
- Clasp Three-fold clasp with push button release
- Distance between lugs 20mm
Other Details
- Water Resistance 20 bar
- Magnetic Resistance 4,800 A/m
Features
- Screw-down crown
- See-through & Screw case back
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- Standard Shipping : 3-10 business days
- If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
- We offer a 30-day return/exchange service after receiving.
- Final sale items are not eligible for returns or exchanges.
- To process your return/exchange, please contact us at [email protected]
- Please click here for more details>>> Return & Exchange Policy
4.9 ★★★★★
Based on 24 reviews
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Product Reviews
★★★★★ 2
Not sturdy enough for me
Size: 8, Color: Chestnut
Really cute and well made but not sturdy. I rolled my heel within minutes of walking around the house. Ain’t nobody got time for that
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Reviewed in the United States on May 6, 2026
★★★★★ 5
Oh so stylish Uggs
Size: 8, Color: Dense Smoke
They are so comfortable and stylish. I’m a size 8.5 and went with a size 8. Great value! Go get some I also got them in a tan color. Love them!
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Reviewed in the United States on May 18, 2026
★★★★★ 5
Very Comfortable
Size: 9, Color: Chestnut, Size: 9, Color: Chestnut
Good quality and very comfortable. Sizing is accurate.
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Reviewed in the United States on April 8, 2026
★★★★★ 4
Cute - change footbed please
Size: 8.5, Color: Dense Smoke
These are so comfy and fit my usually 8.5 foot great. It's the footbed of UGGs that I keep hoping they'll change. It's like our memory foam mattress - cushy and great UNTIL THE HEAT comes! Then it's a no for this hot 65 yo G'ma!
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Reviewed in the United States on May 20, 2026
★★★★★ 3
No me quedaron
Size: 8, Color: Dense Smoke
No son del # vienen más pequeños
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Reviewed in the United States on April 7, 2026