Seiko Cal. 4450 - 770

The 4450-770 is a sought-after Automatic piece from Seiko's golden era. With its 21mm lug width and 9.7mm profile, it sits comfortably on most wrists. [seikata-wm-6ab830eadfad]

Also known as: Sumo, Crown

Specifications

Movement

Automatic

Case Material

Stainless Steel

Case Width

37mm

Case Thickness

9.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Bidirectional

Water Resistance

120m

Dial Color

Silver

Jewels

18j

Frequency

36,000 bph

Power Reserve

52 hours

Year

1988

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