Seiko Cal. 0770 - 820

The 0770-820 is a sought-after Hand-Winding piece from Seiko's golden era. With its 18mm lug width and 12.1mm profile, it sits comfortably on most wrists. [seikata-wm-bc72985eeb8b]

Also known as: Monster, Arnie

Specifications

Movement

Hand-Winding

Case Material

PVD Black

Case Width

42mm

Case Thickness

12.1mm

Lug Width

18mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

140m

Dial Color

Burgundy

Jewels

21j

Frequency

36,000 bph

Power Reserve

68 hours

Year

1987

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