Seiko Cal. 5661 - 378

This Solar model from 1969 features a 39mm Two-Tone case. It features a Black dial protected by a Mineral crystal and offers 150m of water resistance. [seikata-wm-5e6c3ce6fee5]

Also known as: Samurai

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

39mm

Case Thickness

15.5mm

Lug Width

22mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

150m

Dial Color

Black

Jewels

17j

Frequency

28,800 bph

Power Reserve

39 hours

Year

1969

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