Seiko Cal. 3810 - 644

The 3810-644 is a sought-after Automatic piece from Seiko's golden era. It features a Navy dial protected by a Sapphire crystal and offers 170m of water resistance. [seikata-wm-7b9fc6bb55bb]

Also known as: Golden Tuna

Specifications

Movement

Automatic

Case Material

Hardlex-Coated Steel

Case Width

40mm

Case Thickness

10.4mm

Lug Width

18mm

Crystal

Sapphire

Bezel

Coin-Edge

Water Resistance

170m

Dial Color

Navy

Jewels

23j

Frequency

36,000 bph

Power Reserve

44 hours

Year

1974

Related Models

• Seiko 7061-825
• Seiko 7073-947
• Seiko 7011-220
• Seiko 5287-910
• Seiko 3861-837
• Seiko 5636-415
• Seiko 6650-766
• Seiko 4469-374
• Seiko 5638-800
• Seiko 7143-130
• Seiko 4447-542
• Seiko 7193-565