Seiko Cal. 6187 - 540

This Hand-Winding model from 1992 features a 37mm Gold-Plated case. It features a Green dial protected by a Mineral crystal and offers 60m of water resistance. [seikata-wm-b0c5a1f8ac4a]

Also known as: Baby Tuna

Specifications

Movement

Hand-Winding

Case Material

Gold-Plated

Case Width

37mm

Case Thickness

12.8mm

Lug Width

22mm

Crystal

Mineral

Bezel

Coin-Edge

Water Resistance

60m

Dial Color

Green

Jewels

18j

Frequency

36,000 bph

Power Reserve

56 hours

Year

1992

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