Seiko Cal. 3840 - 605

Seiko 3840-605

This Automatic model from 1977 features a 40mm Hardlex-Coated Steel case. Powered by the 3840 caliber with 31j jewels beating at 36,000 bph, it delivers a 69 hours power reserve. [seikata-wm-d399a05bcda0]

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
40mm
Case Thickness
9.5mm
Lug Width
22mm
Crystal
Acrylic
Bezel
Rotating
Water Resistance
30m
Dial Color
Silver
Jewels
31j
Frequency
36,000 bph
Power Reserve
69 hours
Year
1977

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