Seiko Cal. 4497 - 631

Seiko 4497-631

This Automatic model from 1969 features a 46mm Titanium case. Powered by the 4497 caliber with 35j jewels beating at 36,000 bph, it delivers a 50 hours power reserve. [seikata-wm-98bc76da357c]

Also known as: Helmet

Specifications

Movement
Automatic
Case Material
Titanium
Case Width
46mm
Case Thickness
12.3mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
100m
Dial Color
Silver
Jewels
35j
Frequency
36,000 bph
Power Reserve
50 hours
Year
1969

Related Models

seikata-wm-98bc76da357c