Seiko Cal. 6156 - 421

Seiko 6156-421

Released in 1970, the Cal. 6156 with design code 421 was part of Seiko's domestic market collection. Powered by the 6156 caliber with 30j jewels beating at 28,800 bph, it delivers a 39 hours power reserve. [seikata-wm-80ef9b0e0b27]

Also known as: Golden Tuna, Arnie

Specifications

Movement
Hand-Winding
Case Material
Two-Tone
Case Width
43mm
Case Thickness
11.7mm
Lug Width
18mm
Crystal
Acrylic
Bezel
Bidirectional
Water Resistance
70m
Dial Color
Navy
Jewels
30j
Frequency
28,800 bph
Power Reserve
39 hours
Year
1970

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