Seiko Cal. 5621 - 337

Seiko 5621-337

This Quartz model from 1971 features a 34mm Two-Tone case. With its 20mm lug width and 11.4mm profile, it sits comfortably on most wrists. [seikata-wm-33d4dcd52c2a]

Also known as: Tuna, Silverwave

Specifications

Movement
Quartz
Case Material
Two-Tone
Case Width
34mm
Case Thickness
11.4mm
Lug Width
20mm
Crystal
Acrylic
Bezel
Coin-Edge
Water Resistance
190m
Dial Color
Blue Sunburst
Jewels
35j
Frequency
36,000 bph
Power Reserve
72 hours
Year
1971

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