Seiko Cal. 3864 - 643

The 3864-643 is a sought-after Spring Drive piece from Seiko's golden era. It features a White dial protected by a Sapphire crystal and offers 40m of water resistance. [seikata-wm-9f99d369645a]

Also known as: Monster

Specifications

Movement

Spring Drive

Case Material

Two-Tone

Case Width

39mm

Case Thickness

10.3mm

Lug Width

19mm

Crystal

Sapphire

Bezel

Bidirectional

Water Resistance

40m

Dial Color

White

Jewels

23j

Frequency

36,000 bph

Power Reserve

57 hours

Year

1993

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