Seiko Cal. 3820 - 521

The 3820-521 is a sought-after Hand-Winding piece from Seiko's golden era. With its 22mm lug width and 10.4mm profile, it sits comfortably on most wrists. [seikata-wm-0caf993eef18]

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

10.4mm

Lug Width

22mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

90m

Dial Color

Navy

Jewels

24j

Frequency

36,000 bph

Power Reserve

54 hours

Year

1968

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