Seiko Cal. 3878 - 293

This Hand-Winding model from 1973 features a 45mm Two-Tone case. It features a Black dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-d1334925fc41]

Also known as: Monster, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

11.1mm

Lug Width

21mm

Crystal

Mineral

Bezel

Inner Rotating

Water Resistance

60m

Dial Color

Black

Jewels

32j

Frequency

36,000 bph

Power Reserve

66 hours

Year

1973

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