Seiko Cal. 4427 - 712

Seiko 4427-712

The Seiko 4427-712 represents an important milestone in Seiko's 1975 lineup. Powered by the 4427 caliber with 35j jewels beating at 21,600 bph, it delivers a 36 hours power reserve. [seikata-wm-3886c2bcb250]

Also known as: Golden Tuna, Baby Tuna

Specifications

Movement
Automatic
Case Material
PVD Black
Case Width
40mm
Case Thickness
9.5mm
Lug Width
20mm
Crystal
Sapphire
Bezel
Bidirectional
Water Resistance
80m
Dial Color
Champagne
Jewels
35j
Frequency
21,600 bph
Power Reserve
36 hours
Year
1975

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seikata-wm-3886c2bcb250