Seiko Cal. 3878 - 506

The 3878-506 is a sought-after Hand-Winding piece from Seiko's golden era. It features a Cream dial protected by a Sapphire crystal and offers 180m of water resistance. [seikata-wm-c46cf3b7d4ae]

Also known as: Bellmatic, Arnie

Specifications

Movement

Hand-Winding

Case Material

Two-Tone

Case Width

45mm

Case Thickness

9.2mm

Lug Width

22mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

180m

Dial Color

Cream

Jewels

20j

Frequency

36,000 bph

Power Reserve

46 hours

Year

1985

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