Seiko Cal. 3881 - 630

This Solar model from 1965 features a 37mm Two-Tone case. With its 22mm lug width and 8.4mm profile, it sits comfortably on most wrists. [seikata-wm-0cd3d067feef]

Also known as: Monster, Goldfeather

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

37mm

Case Thickness

8.4mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

200m

Dial Color

Navy

Jewels

33j

Frequency

36,000 bph

Power Reserve

53 hours

Year

1965

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