Watch Almanac
Grand Seiko

Evolution 9 Hi-Beat 36000 80 Hours

Ref. SLGH005 · “White Birch”

Case diameter
40 mm
Manufacturer spec
Lug-to-lug
47 mm
Manufacturer spec
Thickness
11.7 mm
Manufacturer spec
Lug width
22 mm
Manufacturer spec

Retail price $9,800 (US, Oct 2026)

Ideal fit
Wrist flat: 55.1 mmLug-to-lug: 47 mm

How the Evolution 9 Hi-Beat 36000 80 Hours wears

Its lugs add 7 mm to the 40 mm case, close to the 7.1 mm typical across the almanac, so its diameter is a fair guide to how it wears.

On our fit model it sits best on wrists from 6.5" to 7.75" (16.5–19.7 cm); below 6.5" the lugs start to reach the edge of the wrist.

At 11.7 mm thick it is thicker than 55% of the 80 other everyday watches we've measured, so expect it to sit tall on the wrist.

Its 22 mm lug width is one of the most common strap sizes; 27 other watches here share it, so aftermarket straps are easy to find.

Will the Evolution 9 Hi-Beat 36000 80 Hours fit your wrist?

With a 47 mm lug-to-lug, here is how it wears across common wrist sizes. We estimate the flat top of each wrist from its circumference; measure yours for a closer answer in the fit finder.

WristFlat width (est.)Fit
6"47.2 mmLugs overhang
6.5"51.2 mmIdeal fit
7"55.1 mmIdeal fit
7.5"59.1 mmIdeal fit
8"63 mmWears small

Specifications

Reference
SLGH005
Collection
Evolution 9
Status
In production
Case material
stainless steel
Crystal
box-shaped sapphire
Water resistance
100 m
Bezel
steel
Dial
white (birch bark pattern)
Strap / bracelet
stainless steel bracelet, folding clasp
Weight
178 g
Style
Everyday, Dress

Movement

Caliber
Grand Seiko 9SA5
Type
automatic
Power reserve
80 hours
Frequency
36,000 vph (5 Hz)
Accuracy
+5/-3 s/day (static); +8/-1 s/day normal use

Takes 22 mm straps. See other 22 mm watches and straps.

More Evolution 9 references

Watches that wear the same size

Other watches within 1.5 mm of its lug-to-lug.

Same 22 mm lug width

All 22 mm watches

These take the same straps as the Evolution 9 Hi-Beat 36000 80 Hours.

Sources