Seiko Cal. 7121 - 420

Seiko 7121-420

This Automatic model from 1990 features a 36mm Two-Tone case. Powered by the 7121 caliber with 27j jewels beating at 36,000 bph, it delivers a 55 hours power reserve. [seikata-wm-eeaf4ebf9f46]

Also known as: Helmet, Golden Tuna

Specifications

Movement
Automatic
Case Material
Two-Tone
Case Width
36mm
Case Thickness
9.9mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
150m
Dial Color
Silver
Jewels
27j
Frequency
36,000 bph
Power Reserve
55 hours
Year
1990

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