Seiko Cal. 6315 - 121

This Hand-Winding model from 1979 features a 44mm Gold-Plated case. It features a Black dial protected by a Mineral crystal and offers 80m of water resistance. [seikata-wm-97fad84c7796]

Also known as: World Timer, Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

44mm

Case Thickness

9.7mm

Lug Width

21mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

80m

Dial Color

Black

Jewels

17j

Frequency

36,000 bph

Power Reserve

48 hours

Year

1979

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