Seiko Cal. 5661 - 379

Seiko 5661-379

The Seiko 5661-379 represents an important milestone in Seiko's 1985 lineup. Powered by the 5661 caliber with 21j jewels beating at 21,600 bph, it delivers a 40 hours power reserve. [seikata-wm-6a7a5db05951]

Also known as: Sumo, Shogun

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
39mm
Case Thickness
8.9mm
Lug Width
21mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
190m
Dial Color
Cream
Jewels
21j
Frequency
21,600 bph
Power Reserve
40 hours
Year
1985

Related Models

seikata-wm-6a7a5db05951