Seiko Cal. 3840 - 763

Seiko 3840-763

The 3840-763 is a sought-after Solar piece from Seiko's golden era. The Inner Rotating bezel and 41mm case give it a distinctive presence on the wrist. [seikata-wm-fc3f46466aaa]

Also known as: Monster, Baby Tuna

Specifications

Movement
Solar
Case Material
Hardlex-Coated Steel
Case Width
41mm
Case Thickness
11.9mm
Lug Width
18mm
Crystal
Sapphire
Bezel
Inner Rotating
Water Resistance
190m
Dial Color
Black
Jewels
21j
Frequency
36,000 bph
Power Reserve
61 hours
Year
1986

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