Seiko Cal. 6645 - 335

Seiko 6645-335

The 6645-335 is a sought-after Automatic piece from Seiko's golden era. With its 18mm lug width and 12.7mm profile, it sits comfortably on most wrists. [seikata-wm-0f4254f77771]

Also known as: Tuna, Arnie

Specifications

Movement
Automatic
Case Material
Hardlex-Coated Steel
Case Width
36mm
Case Thickness
12.7mm
Lug Width
18mm
Crystal
Mineral
Bezel
Fixed
Water Resistance
30m
Dial Color
Green
Jewels
33j
Frequency
21,600 bph
Power Reserve
55 hours
Year
1990

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