Seiko Cal. 6121 - 690

Seiko 6121-690

The Seiko 6121-690 represents an important milestone in Seiko's 1967 lineup. Powered by the 6121 caliber with 31j jewels beating at 36,000 bph, it delivers a 45 hours power reserve. [seikata-wm-ef7845b3026e]

Also known as: Monster, Shogun

Specifications

Movement
Hand-Winding
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
15.7mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
130m
Dial Color
Cream
Jewels
31j
Frequency
36,000 bph
Power Reserve
45 hours
Year
1967

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