Seiko Prospex Alpinist Automatic Men’s Watch


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Item code: M123121

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    Seiko Prospex Alpinist Automatic Men’s Watch | £650

    Ring Size Guide

    Ring Size Circumference (mm) Ring Size Circumference (mm) Ring Size Circumference (mm)
    J 48.7 P 56.3 V 64.0
    K 50.0 Q 57.6 W 65.3
    L 51.2 R 58.9 X 66.6
    M 52.5 S 60.2 Y 67.8
    N 53.8 T 61.4 Z 68.5
    O 55.1 U 62.7
    Ring Size Circumference (mm) Ring Size Circumference (mm)
    I 48.0 R 58.9
    J 48.7 S 60.2
    K 50.0 T 61.4
    L 51.2 U 62.7
    M 52.5 V 64.0
    N 53.8 W 65.3
    O 55.1 X 66.6
    P 56.3 Y 67.8
    Q 57.6 Z 68.5

    Please note that this is only a guide and will not take into account the style of ring. For example, if you are choosing a ring with a deep band width, you may need a larger size.

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    Seiko Prospex Alpinist Automatic Men’s Watch (M123121)

    First launched in 1959, this Seiko Prospex Alpinist Automatic Men’s Watch was originally designed to help the Japanese ‘Yama-otoko’ mountain men navigate in treacherous terrain. Its sleek style ensures it will look as good in a business meeting as it will on the mountain.


    At A Glance


    • Presented on a stainless steel bracelet with three fold clasp and push button release
    • 39.5mm stainless steel case with a polished bezel with rotating compass inner ring and 200m water resistance
    • Sapphire crystal with magnifier and anti-reflective treatment on the inside
    • Black dial with Arabic numeral hour markers
    • Date window at 3 o’clock
    • Battery charge indicator and overcharge prevention function
    • Powered by an automatic movement with manual winding capacity
    • 70 hours power reserve

    Read more


    Range Prospex
    Collection Alpinist
    Supplier Code SPB117J1
    Strap/Finish Stainless Steel
    Strap Type Bracelet
    Watch Movement Automatic
    Function Date
    Water Resistancy 200m
    Case Size (mm) 39.5
    Dial Colour Black
    Markers Batons
    Clasp Type Fold Over Clasp
    Glass Type Sapphire Crystal Glass
    Manufacturer Warranty 2 Years

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