Seiko Cal. 5645 - 398

Seiko 5645-398

The Seiko 5645-398 represents an important milestone in Seiko's 1973 lineup. The Inner Rotating bezel and 39mm case give it a distinctive presence on the wrist. [seikata-wm-9ff3a1617000]

Also known as: Monster, Sportsmatic

Specifications

Movement
Automatic
Case Material
Stainless Steel
Case Width
39mm
Case Thickness
12.1mm
Lug Width
19mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
190m
Dial Color
Burgundy
Jewels
32j
Frequency
21,600 bph
Power Reserve
47 hours
Year
1973

Related Models

seikata-wm-9ff3a1617000