Seiko Cal. 4491 - 687

Seiko 4491-687

The Seiko 4491-687 represents an important milestone in Seiko's 1970 lineup. Powered by the 4491 caliber with 32j jewels beating at 21,600 bph, it delivers a 61 hours power reserve. [seikata-wm-74fb1016b09d]

Also known as: Golden Tuna, Emperor

Specifications

Movement
Kinetic
Case Material
Titanium
Case Width
46mm
Case Thickness
13.1mm
Lug Width
19mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
160m
Dial Color
Champagne
Jewels
32j
Frequency
21,600 bph
Power Reserve
61 hours
Year
1970

Related Models

seikata-wm-74fb1016b09d