Seiko Cal. 3840 - 310

Seiko 3840-310

This Spring Drive model from 1999 features a 38mm Hardlex-Coated Steel case. The Rotating bezel and 38mm case give it a distinctive presence on the wrist. [seikata-wm-fa18e267bf25]

Also known as: Monster, World Timer

Specifications

Movement
Spring Drive
Case Material
Hardlex-Coated Steel
Case Width
38mm
Case Thickness
12.2mm
Lug Width
22mm
Crystal
Hardlex
Bezel
Rotating
Water Resistance
30m
Dial Color
White
Jewels
24j
Frequency
36,000 bph
Power Reserve
51 hours
Year
1999

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