Seiko Cal. 3820 - 707

The Seiko 3820-707 represents an important milestone in Seiko's 1965 lineup. It features a Champagne dial protected by a Hardlex crystal and offers 80m of water resistance. [seikata-wm-eccf48888ea4]

Also known as: Sumo, Flighty

Specifications

Movement

Solar

Case Material

Gold-Plated

Case Width

39mm

Case Thickness

12.5mm

Lug Width

21mm

Crystal

Hardlex

Bezel

Coin-Edge

Water Resistance

80m

Dial Color

Champagne

Jewels

36j

Frequency

21,600 bph

Power Reserve

49 hours

Year

1965

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