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3 min read January 14, 2020


Seiko Alpinist watches has been around since the sixties, which makes them as Seiko’s third oldest sub brand. It’s the craftsmanship and accuracy built on the Alpinist that easily define how the sub brand remain its reputation as one of the most popular models from the Seiko brand.

(Left) Seiko Prospex Alpinist white SBDC089 on Brushed Super-O Boyer – SS201820B065
(Right) Seiko Prospex Alpinist black SBDC087 on Brushed & Polished Super-O Boyer – SS201805P2S065

Super-O Boyer watch bracelet is a new breakthrough of our Super-O Boyer Collection. Same as Super-O Boyer, this Super-O Boyer composed of 3 flat and solid 316L stainless steel units plus highlighted 3D effect curved solid end pieces perfectly fit Seiko Automatic Alpinist Watch SARB013, SARB015 and SARB017 models.

Just last week, we were able to get our hands on 2 of 4 latest new Seiko Prospex Alpinist models, the SBDC087 (Black) & SBDC089 (White). The SBCD091(Emerald Green) & SBDC093 (White Limited Edition) are scheduled to arrive later in the month which we will further discuss in later posts.

2-tone Angus-J Louis 316L Stainless Steel Watch Bracelet on SBDC089 – SS201820PGD064

Angus-J Louis watch bracelet with a curved solid end pieces perfectly fit This Angus-J Louis with a curved solid end pieces perfectly fit Seiko Automatic Alpinist Watch SARB013, SARB015 and SARB017 models.

The latest Alpinist models are equipped with the 6R35 caliber (70hr power reserve), upgraded from the predecessor with 6R15 caliber (50hr power reserve). In terms of measurements on the new model, the case dimensions and thickness on the watch case have also increased from 38mm to 39.4mm, and slightly thicker from 12mm to 13.2mm.

Two-tone 20mm Super-O Boyer 316L Stainless Steel Watch Bracelet on white Alpinist SS201820PGD065

On the visual aspect, several changes were made on the new Seiko Prospex Alpinist models. The Prospex logo in the middle of the dial is perhaps the first thing you notice when you first glance on the new model. The cyclops date window magnification lens was brought back after several generations of the Alpinist models.

Looking at the dial on the new SBDC087 (Black) model, the even numbers display hour has been changed to match the rest of the number hour display. On to the back of the watch case, the famous mountain logo with a full cover screw down case back is now replaced with a clear case back.

The “S” letter was removed

Last but not least, the “S” letter was removed from the crown of the latest Seiko Prospex Alpinist models.

Screw-in adjustable details instead of pressure pins. Tapered 20mm lug into 18mm buckle size. Accompanied with 2015 new released V-Clasp double lock buttoned divers clasp.

With a rich history that Seiko Alpinist model watches have, they will continue to be one of watch enthusiasts preferred sub brand from Seiko for a long period of time. Even if the latest model may or may not be as appealing to you as some of the previous models with reasons such as the price, or things that have been added or removed from the design, it does not change the fact that Seiko Alpinist is a great watch. With generations of Seiko Alpinist watches that have been introduced over the years, there’s bound to be a model that intrigues you to add to your collection.


Series : Prospex
Model Number : SBDC089
Release Date : 11 January 2020
Drive system : Mechanical self-winding (with manual winding)
Caliber No : 6R35
Case Material : Stainless Steel
Glass Material : Sapphire glass (with internal antireflective coating / lens)
Band Material : Calf leather
Accuracy : Average daily rate +25 seconds -15 seconds
Waterproof : 200m
Size : W 46mm × H 41mm × T 14mm
Weight : 71g
Product Function
20 standard atmosphere waterproofing
Average daily difference +25 to -15 seconds
Driving period: Approximately 70 hours at maximum winding
Date display
Second hand stop function
Screw back
Back skeleton
Screw lock type crown
Lumi Bright (Needle / Index)
Inner ring with simple compass
24 stones
Magnetic resistance
Made in Japan

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