Seiko SLT063 “The Great Blue” HAQ

Model: Seiko “The Great Blue” SLT063 / 8F56-0130 HAQ

Year: April 2001

The Theme. A sailing alternative to Seiko’s high-accuracy mountain watches. This early-2000s sea-inspired GMT Seiko offers a refreshing twist on the famous SBCJ Alpinist models, swapping mountain climbing practicality for nautical flair. Packed with distinctive quirks, it stands apart from its rugged land-oriented counterparts.

The Design. A hallmark of Seiko’s seafaring designs, the watch features dual crowns at 3 and 9 o’clock, a layout that enhances toughness by protecting both crowns with guards. In contrast, the SBCJ Alpinist models have their crowns at 4 and 2 o’clock on the right side of the case, leaving them exposed to potential knocks.

The GMT. Three time zones can be tracked simultaneously, using the Hour hand, the GMT hand, and the rotating 24-hour bezel. The inner 24-hour bezel is controlled by the left crown, while the True GMT movement allows you to adjust the hour hand independently via the right crown, leaving the GMT hand unaffected. Unlike many high-accuracy GMT movements, the second hand doesn’t hack. This choice complements the watch’s high accuracy of +/- 20 seconds per year, ensuring that adjustments to the hour hand don’t compromise timekeeping precision. 

The Condition. Very great condition overall. The crystal, dial and hands are flawless. There are hairlines on the case, but nothing significant or noticeable on the wrist. 

Scope: No box or papers.

Movement: 8F56 HAQ

Dimensions:

• Case Width: 38.5mm
• Case Thickness: 11.1mm