Seiko Cal. 6243 - 931

Seiko 6243-931

The Seiko 6243-931 represents an important milestone in Seiko's 1973 lineup. Powered by the 6243 caliber with 29j jewels beating at 36,000 bph, it delivers a 58 hours power reserve. [seikata-wm-4a9b56c04e9b]

Also known as: Baby Tuna

Specifications

Movement
Hand-Winding
Case Material
PVD Black
Case Width
43mm
Case Thickness
14.7mm
Lug Width
18mm
Crystal
Mineral
Bezel
Inner Rotating
Water Resistance
140m
Dial Color
Champagne
Jewels
29j
Frequency
36,000 bph
Power Reserve
58 hours
Year
1973

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