Seiko Cal. 3813 - 750

This Solar model from 1977 features a 45mm Two-Tone case. It features a Navy dial protected by a Sapphire crystal and offers 60m of water resistance. [seikata-wm-6ed3e1ffd920]

Also known as: Baby Tuna

Specifications

Movement

Solar

Case Material

Two-Tone

Case Width

45mm

Case Thickness

9.4mm

Lug Width

20mm

Crystal

Sapphire

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Navy

Jewels

32j

Frequency

28,800 bph

Power Reserve

54 hours

Year

1977

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